Let's talk about color.
Our NightCool fabric can be made in thirty-seven of them. Right now we make about five. And I would love to change that, with your help.
Below is the whole range, family by family, with what each color is actually like and where I think it could go. Every section ends with a question, because I genuinely want your answer. I will tell you at the end exactly what I do with them.
First, the thing I most want you to know
When you buy a NightCool piece, you are getting the original Kottinu fabric, from our original manufacturer. That has not changed, and it is not going to. NightCool is the original. Every NightCool piece we make is cut from it.
So why only about five colors?
It comes down to a careful relaunch. When NightCool was brought back, the team at the time started with the three colors our customers had always reached for first: black, navy and merlot. Dusk Blue and Violet followed. Island arrived with the Tulip styles. It was a sensible, steady way to begin.
But beginning is not the same as finishing. We are ready to open this range up, and I would so much rather do it with you than guess.
A quick, honest word on color and sleep
Color is a subject where the internet is extremely confident and the science is refreshingly modest. The Sleep Foundation puts it plainly: little research directly explores the connection between color and sleep. So nobody, us included, should tell you a nightgown color will change how you rest.
What the wider color research does suggest is lovely and worth knowing. Cool tones, the blues and greens, are the ones most consistently associated with calm and with nature. Warm tones, the reds and yellows, read as energy, warmth and cheer.
And here is the thing I keep coming back to: energy is not the enemy. Plenty of us want to feel bright and happy in the evening, not sedated. Plenty of us live in these pieces long before bedtime, on the sofa, in the garden, on a slow Sunday. A color that makes you grin when you put it on is doing real work.
So read the notes below as an invitation, never a claim. Wear the color you love.
Blues, sky and sea
If any family feels most like us, it is this one. Cool-jams, cool colors. It is also the family the research is kindest to, since blue is the shade most often linked with calm and with feeling settled.
Island is our bright, clear sky blue, and you already know it from the Tulip Shorts and Tulip Tank. Blue Bell is softer and a little periwinkle, like a hydrangea just past its peak. Aqua is pale and watery and would be a joy in August.
Vapor Blue is the one I keep coming back to. It is barely a blue at all, more a pale cool grey with a breath of sky in it, the color of early morning light through a window. Quiet, gentle, and it would sit beautifully beside everything else in your drawer.
Then Provence, a proper cornflower with some confidence about it, and Aquamarine, which leans green and reads a little tropical.
Which of these cool ones should we add first?
Blues, deep and navy
The grown-up end of the blues, and where our best sellers already live. Navy is on nearly every 2026 sleepwear trend list going, so you have excellent instincts.
Navy and Light Navy you know well. Dusk Blue you may know as Dusty-blue, which is what we used to call it. Same color, new name.
Niagara is a soft denim blue that goes with absolutely everything. Turquoise Sea is deeper and greener, like water over rock. And Royal is the boldest blue on the entire range, properly saturated, the one for anyone who finds navy a touch too safe.
Is there room for a blue between navy and sky, or does navy already do that job for you?
Greens and earth
We have not put a green into NightCool yet, and honestly, I think that is the biggest gap on this whole page. Sage green sits at the top of nearly every 2026 sleepwear color forecast, and Pinterest named a soft green called Jade one of its colors of the year. Green is also the other shade the research tends to tie to calm, most likely because of everything it reminds us of. Gardens. Moss. Being outside.
RR Green is a deep, soft forest green with a whisper of grey in it. I think it would be gorgeous, and it is one of those rare shades that flatters just about every skin tone. Picture it as a long gown, or a set for the colder months.
Forest goes darker still, nearly a black-green, elegant and very easy to wear. Army Green is warmer and more olive. Desert Palm is the warmest of the four, a soft driftwood brown-green that would slot straight into the neutral corner of your wardrobe, right alongside the terracottas everyone is reaching for this year.
Would a green NightCool piece tempt you, or is green a step too far for sleepwear?
Pinks and plums
The softest family, and the one with the most range packed into it. Blush pink and dusty lavender are both on the 2026 forecasts, and we have beautiful versions of each sitting right here.
English Rose is the one I would most love to hear about. A pale, powdery, barely-there pink. The kind of soft neutral that has quietly taken over everything lately. And since Violet is already in the NightCool line and you have made it such a favorite, a gentle pastel like English Rose feels like a natural next step rather than a leap.
Pink is brighter and prettier, a proper rose. Lilac is the dusty, muted one, a grey-lavender that would layer so nicely with the blues.
Merlot is already one of our three founding colors, and it is still the most quietly luxurious thing we make. Deep berry shades are having a real moment too. Pinterest called its version Plum Noir.
Which brings me to Raspberry. Right now the only way to have raspberry in NightCool is our Raspberry Vine print, on the Snap Front and Scoop Neck nightshirts. Would you like it as a solid as well?
And a bigger question while we are here: how do you feel about prints? We have Leaf and Vine in a handful of colorways. Would you like to see the pattern side grow alongside the solids, or do you prefer your sleepwear plain?
Reds and berries
Now for the joyful end, and I will be straight with you: the color research files warm reds under energy rather than rest. I do not think that is a problem at all. Some of us want to feel bright and happy in the evening. Some of us are wearing these pieces at four in the afternoon with a cup of tea, nowhere near a pillow. A color that lifts your mood is doing something genuinely worthwhile.
Paradise Pink is a vivid raspberry-red with real punch. Red is a true, clean, classic red. Either one would make a wonderful holiday piece. Picture a red NightCool set under the tree on Christmas morning, or a Paradise Pink nightshirt for Valentine's.
Coral is the summer one, warm and sunny and instantly cheering, and very close to Persimmon, another of Pinterest's 2026 picks. Melon sits between coral and red. Cardinal and Maroon are the deep, wine-dark end of the family, close cousins to the Merlot you already love.
Would a festive or a bright color earn a place in your drawer, whether for sleeping or just for lounging?
White, cream and yellow
Here is a lovely piece of history. White is the traditional nightgown color. It was the dominant shade in nightwear right up until after the First World War, when younger women finally started reaching for blues and pinks instead. If you picture a nightgown in your mind's eye, there is a very good chance it is white, and that is a century of habit talking.
It is having a moment again, too. Pantone named a soft warm off-white called Cloud Dancer its Color of the Year for 2026, the first white the program has ever chosen, describing it as a calming influence in a busy world. White is also one of the shades most often described as restful, partly because there is simply less for your eye to do.
So let's explore the pale end together. White is crisp, clean and classic. Antique White is a true warm ivory. Vanilla is our soft cream, the easiest of the three to live in. They are genuinely different in the hand, and choosing between them is half the fun.
Mojave Desert is a warm sand, a properly wearable neutral. And Lemon is pure sunshine, the brightest thing on this entire range. Buttercream yellow is on the 2026 lists as well, and Lemon makes me smile every single time I look at it.
White has always been the classic. Which of these whites and creams would you most like to see us bring back?
Deep neutrals
So what does black actually do?
Quite a lot, it turns out. Black is the color luxury leans on. It is what the great fashion houses reach for when they want to say elegance without saying anything at all, and studies of color in clothing consistently tie it to sophistication, confidence and quiet authority. In sleepwear it is also the practical champion: it is forgiving, it never looks tired, it does not show a thing, and it goes with every robe and every pair of slippers you own. There is a reason it was one of the three we relaunched with, and a reason it is still where most of you shop.
Charcoal is a soft mid grey, and charcoal grey is on the 2026 forecasts right alongside navy. Forged Iron is a deeper slate. Stormy Blue is the interesting one, a grey with just enough blue in it to feel considered rather than plain.
Would a really good grey earn a place next to your black set?
Now the part that matters most
Some of you have been with us for years. Some of you found us last week, because you could not sleep and a friend told you about us. Both of you are the reason this range is going to grow.
So tell me what you want. Comment below, or reply to any email from me. If it helps, keep it simple: one color and one style. "RR Green, the long gown." That is all I need.
And here is exactly what happens next. I read every single response. The colors that come up most often go onto the shortlist we take to our manufacturer, and when the next range is decided, I will come back to this page and show you what made it and who asked for it. You will see your own suggestions in the line.
Thirty-seven colors. Let's fill this range in together.
— Sandra
If your NightCool has ever felt different to you
Tell us, and give it one more proper go. There is a 30-day window on your order, and the most common reason a wicking fabric stops feeling like itself is fabric softener. It coats the fibers and blunts the exact property you bought it for.
The care that keeps NightCool feeling like NightCool:
- Cool or warm water, gentle cycle
- No fabric softener, no softener sheets, no bleach
- Tumble dry low, or hang to dry
If softener has already been used, rewash in clear water to rinse the residue out. It really does come back. Full details are on our Sleepwear Care page, and if it still is not right, email us at [email protected].
More from the blog: How to sleep better in menopause, without hormones · How to beat the heat, day and night · How to care for your Cool-jams
Shop NightCool: Women's Nightgowns · Women's Pajama Sets · Men's Sleepwear
Sources: Sleep Foundation, What Color Helps You Sleep; Pantone Color of the Year 2026; Pinterest Palette 2026; Victorian and Edwardian nightgown history.
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