20 Cooling Sleepwear Brands Ranked by Fabric, Not Marketing (2026)
Twenty sleepwear brands, ranked by what their fabric is built to do, not by how cooling the marketing sounds. We scored every brand on four things any shopper can check in thirty seconds: does it publish the fiber content, the fabric weight, the construction, and a test method or laboratory. Then we sorted the category by which kind of hot night each fabric is engineered for, because there are four different hot nights and they need four different fabrics.
Why this list is different
We are a sleepwear brand and we are in this list. So we did the thing that makes a brand ranking checkable: we published the rules before the results, scored ourselves on the same four rules as everyone else, and did not hand ourselves the win in the four categories where we do not deserve it. For the science with none of the shopping, read what makes a fabric breathable.
How we ranked 20 brands
Every ranking of cooling sleepwear has the same hidden problem. It blends properties measured on different scales, by different machines, and calls the average a score. Breathability is air permeability under ASTM D737. Wicking is AATCC 197 and 195. Drying rate is AATCC 201. Absorption is moisture regain. Those numbers cannot be added together, and a blended cooling score built out of them is not a measurement. It is an opinion wearing a lab coat.
So we did not build one. We built two rankings that can be checked, and we kept them apart. The first is transparency: what a brand will tell you about its own cloth. The second is fitness for purpose: which of the four hot nights the fabric is built for.
1. Fiber content, with percentages
On the product page, not in a press release. This is the floor, and one brand in twenty still misses it.
2. Fabric weight
Grams per square meter, momme for silk, or ounces. The single biggest lever on how a fabric breathes, and almost nobody in sleepwear publishes it.
3. Construction named
Jersey, interlock, poplin, sateen, charmeuse. The knit or weave decides how open the cloth is. Stretch knit counts. Soft does not.
4. A test method or laboratory named
A named standard the fabric is tested to, or a named independent lab that tested the garment. Chemical safety certifications such as OEKO-TEX do not count, because they measure something else.
The rule we refused to break
A fabric that soaks sweat up is slow to dry. A fabric that dries fast soaks nothing up. That is not two failures, it is one trade, and every fiber in sleepwear sits somewhere on it. Any list that hands one brand a clean sweep of every column has stopped measuring and started selling. Ours does not, and you will watch us lose four of the five categories below.
The four hot nights, which are not the same night
These come from our own fabric scorecard, and they are why two people can buy the same praised pajama and one is delighted while the other is lying in a wet patch at three in the morning.
Warm and stuffy, not really sweating Airflow
Hot but dry. You need air moving through the cloth. Light, open, low weight.
Sweating through your nightclothes Wicking and spread
Liquid sweat needs moving sideways and out. Absorbency works against you here.
Intense episodes, then resettling Drying rate
The cloth has to give the water back to the air before you can sleep again.
Slightly damp and clammy Vapor absorption
Low volume moisture the fiber can take in and hold without feeling wet.
Most people shopping for cooling sleepwear are in the second or third night and are being sold the first one, because breathable is the easiest word to say.
All 20 brands, and what each one will tell you
Fabric details are as each brand publishes them, checked August 2026. Compositions change between styles and colors more than you would expect, so read the label on the piece you are actually buying. Price bands are observed ranges for adult sleepwear, not a promise.
| Brand | Fabric, as published | Family | Tells you | Price | Built for |
|---|---|---|---|---|---|
| 01 Cool-jams NightCool | 100% polyester microfiber, 159 g/m2 | Engineered synthetic | ●●●● | $60 to $120 | Heavy sweat |
| 02 Woolx | 70% merino and 30% nylon, 150 gsm, 16.5 micron | Merino blend | ●●○○ | $100 to $200 | Swinging nights |
| 03 Dagsmejan | 95% micro modal and 5% elastane (NATTWELL). NATTCOOL blends merino with lyocell | Merino and modal | ●●○○ | $125 to $200 | Light damp |
| 04 Quince | 100% mulberry silk, 22 momme, washable | Silk | ●●○○ | $60 to $130 | Cool touch |
| 05 LILYSILK | 100% mulberry silk, 22 momme | Silk | ●●○○ | $180 to $400 | Cool touch |
| 06 Lunya | 100% mulberry silk, 19 momme, washable | Silk | ●●○○ | $150 to $350 | Cool touch |
| 07 Fishers Finery | 100% mulberry silk, 19 momme | Silk | ●●○○ | $90 to $200 | Cool touch |
| 08 Cozy Earth | 95% viscose from bamboo and 5% spandex, stretch knit | Viscose from bamboo | ●●○○ | $130 to $200 | Light damp |
| 09 Printfresh | 100% organic cotton poplin, woven | Cotton, woven | ●●○○ | $100 to $170 | Warm and stuffy |
| 10 Petite Plume | 100% Peruvian Pima cotton, jersey knit | Cotton, knit | ●●○○ | $100 to $180 | Warm and stuffy |
| 11 Sijo | 95% TENCEL lyocell and 5% elastane | Lyocell | ●○○○ | $90 to $150 | Light damp |
| 12 Eberjey Gisele | 95% TENCEL Modal and 5% elastane | Modal | ●○○○ | $120 to $190 | Light damp |
| 13 ettitude | 100% lyocell from organic bamboo | Lyocell | ●○○○ | $90 to $150 | Light damp |
| 14 Tommy John Second Skin | 90% micro modal and 10% spandex. Heathers run 47 modal, 43 polyester, 10 spandex | Modal and blends | ●○○○ | $60 to $130 | Light damp |
| 15 Soma Cool Nights | 93% rayon and 7% spandex | Viscose | ●○○○ | $40 to $90 | Cool touch |
| 16 Lusome | Varies by style. For example 65% micro modal, 30% polyester, 5% spandex | Modal and polyester | ●○○○ | $90 to $180 | Heavy sweat |
| 17 32 Degrees Cool | 90% polyester and 10% spandex | Engineered synthetic | ●○○○ | $15 to $35 | Heavy sweat |
| 18 UNIQLO AIRism | Cupro, polyester, nylon and spandex. Ratio varies by garment | Blend | ●○○○ | $15 to $50 | Warm and stuffy |
| 19 Latuza, NACHILA and Joyaria | 95% viscose from bamboo and 5% spandex | Viscose from bamboo | ●○○○ | $25 to $50 | Light damp |
| 20 Rest Evercool | Not stated on the product page. The launch release says a nylon and viscose blend, with no percentages | Nylon and viscose | ○○○○ | $83 to $139 | Cool touch |
Four filled dots means the brand publishes fiber content, fabric weight, construction and a test method or laboratory. Scroll the table sideways on a phone.
The transparency index, one to twenty
This is the ranking that sets the order, because it is the only one you can verify without a laboratory. It does not measure how cool a pajama feels. It measures whether the brand has given you enough to work that out for yourself.
01 Cool-jams NightCool ●●●●
The only range here publishing fiber content, a fabric weight, a construction and the test standards on one site. Publishes all four
02 Woolx ●●○○
Publishes gsm and micron on its fabric pages, which almost nobody in sleepwear does. Not repeated per product. Missing: Knit, Test or lab
03 Dagsmejan ●●○○
The only brand naming the independent labs that tested its garments, EMPA and Testex. No fabric weight anywhere. Missing: Weight, Knit
04 Quince ●●○○
Momme is a fabric weight, so silk brands quietly clear a bar most knit brands never approach. Missing: Knit, Test or lab
05 LILYSILK ●●○○
A heavier momme. More drape and durability, and it holds warmth longer than a 19 does. Missing: Knit, Test or lab
06 Lunya ●●○○
A lighter momme than Quince or LILYSILK, which is the honest reason it feels airier on. Missing: Knit, Test or lab
07 Fishers Finery ●●○○
The same weight class as Lunya, in a lower price band. Missing: Knit, Test or lab
08 Cozy Earth ●●○○
Names the knit, which most competitors skip. No weight, so lightweight stays a word rather than a number. Missing: Weight, Test or lab
09 Printfresh ●●○○
Poplin is a named weave, and a named weave tells you more about airflow than most knit descriptions do. Missing: Weight, Test or lab
10 Petite Plume ●●○○
Names the cotton grade and the knit. No weight, so you cannot tell a summer jersey from a winter one. Missing: Weight, Test or lab
11 Sijo ●○○○
Clear on the fiber and on where the pulp comes from. Silent on how the cloth is built. Missing: Weight, Knit, Test or lab
12 Eberjey Gisele ●○○○
The softness benchmark most shoppers compare everything else against. Missing: Weight, Knit, Test or lab
13 ettitude ●○○○
Lyocell from bamboo is a different process from viscose from bamboo, and they are clear about which one they use. Missing: Weight, Knit, Test or lab
14 Tommy John Second Skin ●○○○
Read the color you are buying. The heathers are close to half polyester and behave differently from the solids. Missing: Weight, Knit, Test or lab
15 Soma Cool Nights ●○○○
Cool to the touch is real and rayon delivers it. It is not the same property as drying fast. Missing: Weight, Knit, Test or lab
16 Lusome ●○○○
Built for the same buyer we are. Worth noticing the polyester in the blend, because that is the part doing the moisture work. Missing: Weight, Knit, Test or lab
17 32 Degrees Cool ●○○○
The cheapest openly labelled performance synthetic here. No weight, so construction varies style to style. Missing: Weight, Knit, Test or lab
18 UNIQLO AIRism ●○○○
The composition genuinely changes between styles, so read each item rather than trusting the AIRism name. Missing: Weight, Knit, Test or lab
19 Latuza, NACHILA and Joyaria ●○○○
Three brands, one fabric spec, one price band. Far more uniform than the branding suggests. Missing: Weight, Knit, Test or lab
20 Rest Evercool ○○○○
Checked 28 August 2026. The product page carries care, a certification and fit notes, and no fiber content at all. Missing: Fiber %, Weight, Knit, Test or lab
Where we lose, and it is worth saying out loud
Dagsmejan is the only brand here that names the independent laboratories which tested its actual garments, EMPA and Testex. We name the test standards the industry uses, which is not the same thing and is a weaker form of the same promise. On that criterion they are ahead of us, and a ranking that hid it would not be worth reading.
Ranked by which hot night you actually have
Five leagues, five different jobs. A brand can top one and sit at the bottom of another without anyone having done anything wrong, because the fibers sit on a trade and the trade is real. Ratings quoted are fiber tendencies from our scorecard, held at comparable construction. They are not a measurement of any one garment.
Sweating through your nightclothes
Wicking and drying rate. You want a fiber that holds almost no water, because a fiber that holds little gives it up fast. Absorbency is the enemy here, not the goal.
1. Cool-jams NightCool
Engineered polyester microfiber. Wicking Excellent, drying Excellent, absorption Poor. That last one is the design, not a fault.
2. 32 Degrees Cool
The same fiber family at a fifth of the price. No published weight, so consistency between styles is the gamble.
3. Lusome
Modal and polyester blends. The polyester does the moisture work, the modal does the hand feel.
Warm and stuffy, but you are dry
Airflow, and nothing else. The one category where a light woven cotton beats every performance fabric in this list, which is worth knowing before you spend $150.
1. Printfresh
Cotton poplin, woven, named. Open weave, real airflow, and it will crease, which is the price of the airflow.
2. UNIQLO AIRism
Very light, very cheap, and the composition changes between styles. Read each item.
3. Petite Plume
Pima cotton jersey. A knit rather than a weave, so it sits closer and moves less air.
Cool-jams NightCool places fourth here. A 159 g/m2 fine filament knit moves air well, but airflow is not what this fabric was built for, and a light woven cotton beats it.
Slightly damp and clammy all night
Vapor absorption. Low volume moisture the fiber takes into itself. The entire bamboo and modal shelf is genuinely good at this, and it is a bigger category than the cooling marketing admits.
1. Cozy Earth
Viscose from bamboo rates Excellent at absorbing. It takes the damp and holds it, which is right at this volume.
2. Eberjey Gisele
TENCEL Modal. Good absorption, Excellent softness, and the benchmark most shoppers judge softness against.
3. Sijo and ettitude
Lyocell. The most balanced fiber in our scorecard and the leader in nothing, which is a compliment here.
You want it cool the second it touches you
Cool touch and drape. A real, measurable sensation, and completely separate from what happens an hour later when you are wet.
1. Quince
22 momme washable mulberry silk, at the price that made silk a normal purchase.
2. LILYSILK
22 momme. Heavier hand, more drape, and it holds warmth longer than a 19.
3. Lunya and Fishers Finery
19 momme. Lighter and airier, and the honest reason they feel cooler on first contact than a 22.
Cool-jams NightCool places fifth here, behind Soma. We rate Good on cool touch, not Excellent. Silk and viscose win this one and we are not going to pretend otherwise.
Hot, then cold, all night long
Buffering. You need a fabric that takes moisture in without feeling wet, then releases it slowly as you cool, instead of leaving you cold and damp.
1. Woolx
Merino, 150 gsm at 16.5 micron. Absorbs a great deal before it feels wet, which is the buffering mechanism itself.
2. Dagsmejan
NATTCOOL blends merino with lyocell to soften merino's hand and speed its drying. The blend is the point.
3. Cool-jams NightCool
Dries fast enough that you do not resettle into a damp garment, which solves the cold half of the swing rather than the hot half.
Ranked by price band, and what the money buys
The spread runs from about $15 to about $400 for a set. Most of that gap is not fabric performance. It is cut, finish, sizing consistency, returns and brand.
Under $50 The Amazon tier
Latuza, NACHILA, Joyaria, 32 Degrees, UNIQLO AIRism. The fiber spec here can read the same as a $180 brand, which tells you how little the fiber name settles. What you give up is sizing consistency, seam finish, how it survives washing, and any published weight. A reasonable place to find out whether a fiber suits you at all, before buying one that is properly made.
$50 to $100 The workhorse band
Soma Cool Nights, Fishers Finery, Quince silk, Cool-jams separates at $60 to $80, Tommy John. Where performance fabric and real garment construction first meet.
$100 to $200 The specialist band
Dagsmejan, Woolx, Cozy Earth, Eberjey, Printfresh, Petite Plume, Sijo, ettitude, Cool-jams sets at $120. Paying for a fabric engineered for one job, or a natural fiber processed to a high standard. Worth it once you know which night is yours.
Over $200 The luxury band
LILYSILK, Lunya, the upper Woolx sets. Silk at 22 momme, merino at fine micron quality. A materials and longevity purchase. On the narrow question of what happens when you sweat heavily, it does not beat the $60 band.
The one number that does not track price
Not one brand in the sub $50 band publishes a fabric weight. Neither does most of the $100 to $200 band. The brands that do are scattered across every price level: a $60 Quince silk set tells you 22 momme, and a $200 knit set often tells you nothing at all. Transparency is a choice, not a budget.
Ranked by garment type, because the shape changes the physics
The same fabric behaves differently depending on how much of it touches you and how freely air moves underneath. This is the layer most comparisons skip entirely.
Best airflow of any shape
Nightgowns and nightshirts
One layer, open hem, no waistband, air moving up the body. If your night is stuffy rather than sweaty, the shape does more for you than the fiber. Strong ranges: Cool-jams at $80, Woolx Desi at $120, Soma, Petite Plume.
Most coverage, most fabric
Two piece pajama sets
Twice the cloth against you and a waistband that traps. The shape where fabric weight matters most, and where an unpublished weight costs you most. Strong ranges: Cool-jams sets at $120, Cozy Earth, Printfresh, Eberjey, LILYSILK.
The underrated answer
Separates bought individually
A light top with a heavier bottom, or a tank with long pants. Most brands sell sets only, which forces one fabric weight onto two very different parts of your body. Strong ranges: Cool-jams mix and match at $60 to $70, UNIQLO, Tommy John, 32 Degrees.
For the peak of summer
Tanks, camis and shorts
Least fabric, most skin, fastest to dry because there is less to dry. The right answer for the intense episode you have to recover from. Strong ranges: Cool-jams tanks and shorts at $60 to $70, 32 Degrees, Soma. A robe is a different question: it is worn over rather than against you, so wicking is close to irrelevant and weight is everything.
The category's blind spot
Men's sleepwear
Men get night sweats and the shelf mostly behaves as though they do not. Options are thin: Cool-jams men's NightCool tees at $60 and pants at $70, Dagsmejan men's, Tommy John, UNIQLO. Almost nobody sells a men's cooling nightshirt at all.
The six fiber families, and what each is good at
Every brand above belongs to one of these six. Ratings are from our own fiber scorecard, which rates tendencies at comparable construction. Note that air flow rates Varies for every single fiber. That is not a gap in the data, it is the finding: air permeability is set by how a fabric is built, so no fiber can carry an air flow rating on its own.
Viscose from bamboo
In this list: Cozy Earth, Latuza, NACHILA, Joyaria, most of the bamboo shelf
Scorecard: Absorbs Excellent, wicks Limited, dries Poor, softness Excellent
Chemically this is viscose rayon, which is why the label has to say viscose from bamboo rather than bamboo. The plant's properties do not survive the process. It is superb at taking in low volume moisture and slow to give it back, so it suits the clammy night and struggles with the soaking one. Claims resting on what the bamboo plant does are not what the chemistry supports.
Modal and micro modal
In this list: Eberjey, Tommy John, Dagsmejan NATTWELL, Lusome
Scorecard: Absorbs Good, wicks Moderate, dries Poor, softness Excellent
Top of our scorecard for softness, and why so many people call modal pajamas the most comfortable thing they own. It absorbs well and dries slowly, so it is a comfort fabric that handles damp rather than a performance fabric that handles sweat. Blended with polyester, as Lusome and the Tommy John heathers are, it moves toward the performance end.
Lyocell, including TENCEL
In this list: Sijo, ettitude, the lyocell half of Dagsmejan NATTCOOL
Scorecard: Absorbs Good, wicks Moderate, dries Moderate, softness Excellent
The most balanced fiber in the table and the leader in nothing, which is a compliment. It spreads liquid wider than viscose and dries a little faster, so it is the sensible middle if you do not know which night is yours. Lyocell from bamboo and viscose from bamboo are different processes, so read which one a bamboo brand is selling you.
Silk
In this list: Quince, LILYSILK, Lunya, Fishers Finery
Scorecard: Absorbs Good, wicks Limited, dries Moderate, softness Excellent, cool touch Good
Momme is silk's fabric weight, and the one number this category reliably publishes. Nineteen momme feels lighter and airier on first contact, and is roughly 76 gsm. Twenty two drapes more and lasts longer. Silk gives you cool touch and drape. It does not give you a fabric that copes with heavy sweat, and no momme changes that.
Merino wool
In this list: Woolx, the merino half of Dagsmejan NATTCOOL and NATTWARM
Scorecard: Absorbs Excellent, wicks Limited, dries Poor, cool touch Poor
Merino takes in a lot of moisture before it feels wet, which buffers a swinging night better than anything else here. It is slow to dry and does not feel cool against the skin. Micron is the number that matters for itch: under about 18.5 suits most people next to skin, and Woolx publishes 16.5.
Engineered polyester and nylon
In this list: Cool-jams NightCool, 32 Degrees, Rest, the AIRism blends
Scorecard: Wicks Excellent, dries Excellent, absorbs Poor
The family the internet tells you to avoid, and the advice is a fair description of most polyester most people own. A heavy, tightly knitted, coarse filament polo shirt genuinely does sit hot. What does not follow is the jump from that garment to the polymer, because air permeability is a property of a fabric and not of a fiber. Knit the same polyester light, open and from very fine filaments and it behaves completely differently. Which is why an unpublished weight matters most here: without it you cannot tell the two apart.
Which night is yours, and what to buy for it
Open the one that sounds like your worst night.
I wake up soaked and have to change
League A, and absorbency is working against you. You want a fiber that holds almost no water so it gives it up fast, in the lightest construction you can find, and in separates rather than a set so there is less cloth to dry. Start with an engineered synthetic. Ours is the NightCool range, separates from $60. On a tight budget, 32 Degrees is the same fiber family for far less, and the construction is the only thing you are gambling on.
I am hot and restless but never actually wet
League B, and this is the good news category. You do not need performance fabric at all. You need less cloth and more air: a light woven cotton, a nightgown rather than a set, no waistband. Printfresh poplin, a Petite Plume gown, or the cheapest light cotton you already own. Do not spend $180 solving a problem a $40 nightgown solves better.
I am clammy and slightly damp most of the night
League C, and the whole bamboo, modal and lyocell shelf is built for you. Viscose from bamboo absorbs Excellent, which is what low volume moisture needs. Cozy Earth, Eberjey or Sijo for a properly made one. The Amazon bamboo tier carries the same fiber spec, so if you go there, judge it on the make rather than on the label.
Hot for an hour, then freezing, all night
League E. Buffering, not speed. Merino takes in a lot of moisture before it feels wet then lets it go slowly, which stops the cold half of the swing. Woolx at 150 gsm, or Dagsmejan merino and lyocell blends if pure merino feels too warm.
I want it cool the moment I get into bed
League D. Cool touch and drape, not moisture management. Silk at 19 momme feels airier than 22. Quince is the value entry, Lunya and LILYSILK the luxury one, Soma Cool Nights the rayon route for less. This is a first contact purchase and it will not solve a soaking night.
I genuinely do not know which I am
Buy lyocell. Most balanced fiber in the scorecard, leads nothing and fails nothing, lowest regret purchase in the category. Sijo or ettitude. Then watch for a couple of weeks whether you wake up wet, damp or simply hot, and buy properly the second time.
Where Cool-jams sits, including where we do not win
Cool-jams NightCool is made with 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. It is knitted at 159 g/m2 from very fine filaments, which is a light construction, and that build is where both its air flow and its wicking come from. Yes, it is polyester. We would rather say so and publish the weight than hide the fiber behind a trade name.
On our own scorecard it rates Excellent for wicking and Excellent for drying, and Poor for absorbency. That last rating is the design, not a shortcoming: a fiber holding very little water is a fiber that gives it up fast. On softness it sits with cotton rather than modal, which is the honest place for it. On cool touch it rates Good, while silk and viscose rate Excellent. If you only ever run slightly damp, one of the absorbent fibers will suit you better, and we would rather say so than sell you the wrong thing.
$80
Women's NightCool Scoop Neck Nightshirt
One layer, open hem, no waistband. The best airflow shape we make.
View this piece$80
Women's NightCool Long Sleeve Scoop Neck Nightshirt
Coverage without a second layer against the legs.
View this piece$60
Women's NightCool Scoop T-Shirt
Buy it with a separate bottom and set two weights on two different problems.
View this piecePrices checked against our live catalogue on 28 August 2026. Our DayBasics collection is soft everyday sleepwear. We do not market it as a cooling line and it is not built for wicking, so it is not in this ranking.
The short answer
If you read nothing else
There is no best cooling sleepwear brand, because there is no single hot night. If you soak through, buy an engineered synthetic and buy it as separates. If you are hot but dry, buy a light woven cotton nightgown and save your money. If you are clammy, buy viscose from bamboo, modal or lyocell, and compare the make rather than the fiber, because the fiber spec barely moves across the price range. If you swing hot and cold, buy merino. If you want the cool touch, buy silk, and know what it will not do.
And whatever you buy, ask for the fabric weight. Nineteen of the twenty brands here will tell you the fiber. Seven will tell you the weight. One will tell you neither.
Questions people ask about cooling sleepwear brands
What is the best fabric for cooling sleepwear?
There is no single answer at fiber level, because construction decides it. In our fiber scorecard, air flow rates Varies for all twelve fibers for exactly that reason. A light, open, low weight knit will out breathe a heavy dense knit of any fiber. The useful question is which of the four hot nights you have, then which fiber family serves that night.
Is bamboo sleepwear better than polyester for night sweats?
They do different jobs. Viscose from bamboo rates Excellent at absorbing and Poor at drying, so it takes moisture in and holds it, which suits a clammy night. Engineered polyester rates Excellent at wicking and drying and Poor at absorbing, which suits a soaking night. Neither is better in the abstract. Note too that viscose from bamboo is chemically viscose, so claims about the bamboo plant's natural properties do not carry over to the fabric.
Why do so few sleepwear brands publish fabric weight?
Because nobody makes them, and because a published number can be compared. Weight is the biggest single lever on breathability, so publishing it invites a comparison a brand can lose. Silk brands are the exception, and only because momme is an established trade convention the category grew up with.
How was this ranking put together?
Every fabric specification was read from the brand's own published material in August 2026 and recorded as stated. The fiber ratings come from our own scorecard, built from published textile research, and they describe fiber tendencies at comparable construction rather than any specific garment. We are a brand in this list, we published the criteria before the results, and we scored ourselves on the same four rules as everyone else.
For the layer underneath this one, read what makes a fabric breathable for the full twelve fiber scorecard and the test standards, and our seasonal picks guide if you already know which night is yours.
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