Our biggest
fall saleCooler evenings. Slower mornings. Nightwear you'll look forward to slipping into.

The plainest thing we make, and the one women come back for in a second colour.

Wear it for

• Hot nights and 3 a.m. wake-ups. It pulls sweat off your skin and dries quickly, so you settle again instead of lying awake damp.
• Everyday sleeping, on its own or over NightCool shorts, capris or pants.
• Mornings at home. It reads as a normal tee, so nothing needs changing before coffee.
• Travel. Light, flat in a bag, and dry by morning.
• Building a set. Five colours means one for the drawer and one in the wash.

Why it feels good

• The scoop neck sits low and open, which is where heat leaves first.
• Soft, cotton-like and smooth. People expect performance fabric to feel like a gym shirt, and this does not.
• Relaxed through the body, so it does not cling when you turn over.
• Bact-Out keeps it fresher between washes.
• Resists pilling and holds its shape, wash after wash.

Good to know

• Five colours: Black, Navy, Merlot, Dusk Blue and Violet. Sizes S to 3XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

You know the feeling. You're tucked in, and somehow you're still too warm. This is the tee we made for that.

Wear it for

• Hot flash nights and 3 a.m. wake-ups. The knit pulls sweat off your skin and dries fast, so you settle back down instead of lying there damp.
• Warm bedrooms and summer heat, the nights when a fan alone is not enough.
• Travel. It packs flat and dries fast, which is handy when you are living out of a suitcase.
• Mornings at home. It reads as a regular tee, so coffee on the porch does not need a change of clothes.
• Building a set. Pair it with NightCool capris, shorts or pants in the same fabric.

Why it feels good

• The soft pleat gives the fabric somewhere to fall, so it skims your stomach instead of sitting against it.
• Soft and smooth with a cotton-like feel. People expect gym-shirt texture from a performance fabric and are surprised by this one.
• The shoulder and sleeve sit close while the body falls away, so nothing clings when you turn over.
• An odor-control finish helps the fabric stay fresher between washes.
• It holds its shape and resists pilling wash after wash, which is why so many women own it in more than one colour.

Good to know

• Five colours: Black, Navy, Merlot, Dusk Blue and Violet. Sizes S to 3XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. Skip fabric softener and dryer sheets, they coat the fibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has trusted since day one.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

A short sleeve top with a V that opens the neckline, made to go with whatever NightCool bottom you already own.

Wear it for

• Hot flash nights. The open neck and the wicking knit work on the same problem from two directions.
• Mixing and matching. Wear it with NightCool pants, capris, shorts or joggers.
• Warm afternoons at home, where it passes as a regular top.
• Travel. Packs flat, washes out in a sink, dries fast.
• Sleeping cooler without a gown. Some women simply do not like a gown, and this is the answer.

Why it feels good

• The V sits low enough to keep your throat and chest in the air.
• Soft, cotton-like and smooth, with nothing scratchy at the seams.
• Cut relaxed, so it does not cling once you are warm.
• Bact-Out keeps it fresher between washes.
• Holds its shape and resists pilling.

Good to know

• Three colours: Black, Navy and Merlot. Sizes S to 3XL.
• Sold as a separate, so you can size the top and bottom differently.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

Long sleeves that do not trap the heat, for people who are cold going to bed and hot by two in the morning.

Wear it for

• Cold bedrooms with warm nights inside them. Covered when you get in, handled when the heat comes.
• Night sweats and hot flashes. The knit wicks and dries fast even under a duvet.
• Autumn and winter, worn with NightCool pants or joggers.
• Working from home. It reads as a plain long sleeve tee.
• Travel. One top that covers the whole trip.

Why it feels good

• Sleeves that sit close without gripping the arm.
• Soft and cotton-like, with a smooth face against the skin.
• Relaxed through the body, so it does not cling as you warm up.
• Bact-Out keeps it fresher between washes.
• Holds its shape and resists pilling.

Good to know

• Three colours: Black, Navy and Merlot. Sizes S to 3XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

The in-between sleeve, for when short feels bare and long feels like too much.

Wear it for

• Spring and autumn nights, the ones that cannot decide what they are.
• Night sweats and hot flashes. It wicks and dries fast, whatever the season is doing.
• Everyday sleeping, with NightCool capris, shorts or pants.
• Around the house. It looks like an ordinary 3/4 sleeve top.
• Travel. Light, flat packing, quick drying.

Why it feels good

• The scoop neck keeps your throat open to the air.
• 3/4 sleeves cover the shoulder without wrapping the whole arm.
• Soft, cotton-like and smooth, with a relaxed body.
• Bact-Out keeps it fresher between washes.
• Holds its shape and resists pilling.

Good to know

• Three colours: Black, Navy and Merlot. Sizes S to 3XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

A sleeveless tank with a tulip hem, for the nights when the less you have on the better.

Wear it for

• The hottest nights of the year. Sleeveless, with a hem that moves instead of clinging.
• Night sweats and hot flashes. It wicks and dries fast.
• Summer travel. It takes up almost no room.
• Pairing. Wear it with the matching tulip shorts or any NightCool bottom.
• Hot afternoons indoors.

Why it feels good

• Nothing on the shoulders or arms at all.
• The tulip hem falls away from the hip instead of gripping it.
• Soft, cotton-like and smooth against the skin.
• Bact-Out keeps it fresher between washes.
• It holds its shape and resists pilling.

Good to know

• Three colours: Violet, Navy and Island. Sizes S to 3XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• This one is Final Sale, so it cannot be returned or exchanged. Size carefully.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

Pant coverage that stops at the calf, which is often the difference between comfortable and too warm.

Wear it for

• Warm nights when you still want legs covered. Capri length lets your ankles do the cooling.
• Night sweats and hot flashes. It wicks and dries fast where you need it.
• Everyday sleeping, with any NightCool top.
• Travel. Light, quick to dry, easy to roll into a bag.
• Lounging. They pass for capris at home, so the day can start in them.

Why it feels good

• Elastic or drawstring waist, your choice, so the fit is yours.
• Relaxed through the leg with nothing gripping at the knee.
• Soft, cotton-like and smooth against the skin.
• Bact-Out keeps them fresher between washes.
• They keep their shape and resist pilling.

Good to know

• Five colours: Violet, Black, Dusk Blue, Navy and Merlot. Sizes S to 3XL.
• Pick elastic or drawstring at checkout.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

Full-length pants that stay light, for the sleepers who want to be covered and still not too warm.

Wear it for

• Cooler nights and cold bedrooms, without giving up the fabric that handles a hot flash later.
• Night sweats. The knit wicks and dries fast, so the pants are not damp behind the knee.
• Working from home. They look like lounge pants, because they are.
• Travel and shared rooms, where a gown is not enough cover.
• Pairing. Any NightCool top, in any of five colours.

Why it feels good

• Choose an elastic or a drawstring waist, so nothing digs in at the middle of the night.
• Soft and cotton-like, not slippery and not clammy.
• Cut loose through the leg, so the fabric never sticks to you.
• Bact-Out keeps them fresher between washes.
• They hold their shape and resist pilling.

Good to know

• Five colours: Black, Navy, Merlot, Dusk Blue and Violet. Sizes S to 3XL.
• Pick elastic or drawstring at checkout.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

The least you can wear and still be wearing something.

Wear it for

• The hottest nights of the year, when even capris are too much.
• Night sweats and hot flashes. It wicks and dries fast where a hot sleeper needs it most.
• Summer travel. They take up no room at all.
• Pairing. Wear them under a gown or with any NightCool top.
• Warm afternoons, indoors, when the day is as hot as the night.

Why it feels good

• Elastic or drawstring waist, your pick, with nothing biting at the middle.
• Relaxed cut, so the leg never rides up and sticks.
• Soft and cotton-like, not slick and not clammy.
• Bact-Out keeps them fresher between washes.
• They keep their shape and resist pilling.

Good to know

• Three colours: Black, Navy and Merlot. Sizes S to 3XL.
• Pick elastic or drawstring at checkout.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

A tulip hem and a covered elastic waist, in the lightest thing we make for a hot night.

Wear it for

• The hottest nights. Minimal coverage and a hem that falls open instead of gripping the thigh.
• Night sweats and hot flashes. The fabric wicks and dries fast.
• Under a gown, if you like a layer without the heat.
• Summer travel. They weigh nothing in a bag.
• Warm afternoons at home.

Why it feels good

• The covered elastic waist has nothing hard against your skin.
• The tulip hem lets the leg move instead of binding it.
• Soft, cotton-like and smooth.
• Bact-Out keeps them fresher between washes.
• They hold their shape and resist pilling.

Good to know

• Three colours: Violet, Navy and Island. Sizes S to 3XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• This one is Final Sale, so it cannot be returned or exchanged. Size carefully.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

The pair that stays where you put it, with a cuff at the ankle and no cord to dig in.

Wear it for

• Cooler nights. Full-length cover in a fabric that still handles a hot flash at two in the morning.
• Night sweats. It wicks and dries fast, even at the back of the knee.
• Working from home and quick errands. They read as joggers, so you can answer the door in them.
• Travel. Comfortable to fly in and easy to sleep in at the other end.
• Pairing. Five colours to match any NightCool top.

Why it feels good

• A covered elastic waist, so nothing presses on your middle while you sleep.
• Cuffed ankles keep the leg from riding up when you turn over.
• Soft, cotton-like and smooth, never clammy.
• Bact-Out keeps them fresher between washes.
• They hold their shape and resist pilling.

Good to know

• Five colours: Black, Navy, Merlot, Dusk Blue and Violet. Sizes S to 3XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

Wide through the leg, so the fabric never touches more of you than it has to.

Wear it for

• Hot nights when you still want to be covered. The wide leg keeps air moving around you.
• Night sweats and hot flashes. It wicks and dries fast, all the way down.
• Evenings at home. They look like wide leg lounge pants, because they are.
• Travel. Comfortable on a plane and fine to be seen in at the airport.
• Pairing. Any NightCool top.

Why it feels good

• An adjustable drawstring, so you set the waist where you want it.
• The wide leg drapes instead of wrapping.
• Soft, cotton-like and smooth against the skin.
• Bact-Out keeps them fresher between washes.
• They hold their shape and resist pilling.

Good to know

• Two colours: Violet and Black. Sizes S to 3XL, in a short size run.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

A plain crew neck tee for sleeping, in a fabric that deals with the sweat instead of holding it.

Wear it for

• Hot sleepers and night sweats. It pulls sweat off your skin and dries fast, so you are not waking up soaked.
• Warm bedrooms and summer. Cut loose, with airflow through the body.
• Travel. Rinse it out at night and it is dry in the morning.
• Around the house. It looks like an ordinary tee, because it is shaped like one.
• Pairing. Wear it with NightCool pants, shorts or boxers.

Why it feels good

• Soft and cotton-like, with none of the slick feel people expect from a performance fabric.
• The body falls away instead of clinging when you get warm.
• The crew neck sits flat, with no tag scratching at the back.
• Bact-Out keeps it fresher between washes.
• It holds its shape and resists pilling.

Good to know

• Two colours: Navy and Black. Sizes M to 2XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

Sleeveless, for the sleepers who run hottest.

Wear it for

• The hottest nights. Nothing on the shoulders and nothing on the arms.
• Night sweats. The knit wicks and dries fast, so the sheets stay drier too.
• Summer travel. Light, flat packing, quick drying.
• Layering under a tee, if you sleep cold and wake hot.
• Pairing. Wear it with NightCool pants, shorts or boxers.

Why it feels good

• A relaxed cut that does not cling once you warm up.
• Soft, cotton-like and smooth, not slippery.
• Armholes cut for movement, so they do not rub when you turn over.
• Bact-Out keeps it fresher between washes.
• It holds its shape and resists pilling.

Good to know

• Two colours: Navy and Black. Sizes M to 2XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

The layer closest to you, in the fabric that matters most there.

Wear it for

• Hot sleepers and night sweats. It wicks and dries fast where you feel it first.
• Summer nights. Worn on their own when anything else is too much.
• Under NightCool pants, on the nights you want both.
• Travel. Light enough to pack several and quick to wash out.
• Around the house, first thing and last thing.

Why it feels good

• A relaxed fit that does not bind or ride up.
• Soft, cotton-like and smooth, with flat seams.
• The waistband sits without digging in.
• Bact-Out keeps them fresher between washes.
• They hold their shape and resist pilling.

Good to know

• Two colours: Navy and Black. Sizes M to 2XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.

Full-length sleep pants that cover you without cooking you.

Wear it for

• Cooler nights and cold bedrooms, in a fabric that still handles a hot spell at 3 a.m.
• Night sweats. It wicks and dries fast, including behind the knee.
• Working from home, where they pass as lounge pants.
• Travel and shared rooms, when you want to be properly covered.
• Pairing. Any NightCool top.

Why it feels good

• Cut loose through the leg, so nothing sticks as you move.
• Soft, cotton-like and smooth against the skin.
• A waistband that sits flat and stays put.
• Bact-Out keeps them fresher between washes.
• They hold their shape and resist pilling.

Good to know

• Two colours: Black and Navy. Sizes M to 2XL.
• Machine wash cold or warm on a gentle cycle, tumble dry low or hang to dry. No bleach, and skip fabric softener and dryer sheets: they coat the microfibres and can reduce wicking.
• Made in Thailand by the same factory partner Cool-jams has worked with since the beginning.
• Sleep in it for 30 nights. Not right? Send it back for store credit or a refund.

What is Kottinu?

Kottinu, a technical synthetic (engineered polyester microfiber) made for firefighter base layers and medical scrubs, now crafted for hot sleepers and night sweats needing moisture-wicking and cooling pajamas. Soft and smooth with a cotton-like feel, it pulls sweat off your skin, dries fast, carrying body heat away with it.

A Bact-Out finish helps the fabric resist odor, so it stays fresher between washes. Kottinu resists pilling, holds its shape, and machine washes easily.

How to care for Kottinu

• Machine wash cold or warm with like colors, gentle cycle
• Skip fabric softener and dryer sheets, they coat the microfibers and can reduce wicking
• Tumble dry low or hang to dry, Kottinu dries fast
• No bleach
• Holds its shape and resists pilling wash after wash

Where it is made

Every NightCool piece is made in Thailand by the same factory partner Cool-jams has trusted since day one.