"Still Cool sleepwear: things our pajamas will not do"
The shop is open today. The usual move on launch day is to list everything a product will do for you. We are going to start with the other list.
If you run hot at night, you have read the first kind of list many times. You have probably bought from it at least once, and you may have a drawer of "cooling" things that turned out to be ordinary pajamas in a pale color. So before anything else, here is what Still Cool sleepwear will not do. Then what it is, how it fits, and what happens if it is wrong for you.
It will not stop night sweats
No pajamas can. A night sweat starts inside the body. A piece of fabric sits on the outside, and it gets a say only in what happens afterward: whether the damp stays pressed against your skin for the rest of the night, or moves off it so the fabric can dry.
That second part matters more than it sounds. A wet top pulls heat out of you long after you stopped needing to lose it, which is how a hot wake-up turns into a cold one ten minutes later. We went through that in detail in night sweats sleepwear: what to wear to bed if you wake up damp. A lighter layer can make that part of the night more comfortable. That is all it can do.
If a sleepwear brand tells you its pajamas do something about hot flashes or night sweats themselves, it is claiming something no fabric can deliver, and it is fair to ask what else on that page has been stretched. If your nights are regularly soaking, or something has changed and you do not know why, that is a conversation for a doctor, not a product page.
It will not cool you down on its own
Fabric does not make cold. Your body does the cooling, and it is good at it. Your core temperature drifts down by a degree or two Fahrenheit over the night, and the way it gets there is through your skin: blood vessels in the hands and feet widen, warm blood comes to the surface, and heat leaves.
What a pajama can do is get out of the way of that, or block it. A heavy, plush, close-fitting layer holds the heat in place. A light, loose layer lets it go. That is the entire claim we make for our sleepwear: a lighter layer that lets heat and damp leave your skin. We do not have a "temperature-regulating technology", because nobody does.
It will not fix the room
October is furnace season. A good layer under a heavy polyester duvet, in a bedroom the thermostat has decided should be 72 degrees, is still going to have a hard night. The duvet, the mattress protector, the pillow and the heating vent across the room all have a vote, and most of them have more weight than your pajamas.
If the heat just came on in your house, start with the free fixes in our fall guide to sleeping cool when the heat comes on. Several of them will do more than anything you can buy, including from us.
It will not change your life
It is a set of pajamas and a dress. It will not make you a morning person, give you back your twenties, or solve whatever kept you awake at 3 a.m. besides the heat. We would rather you bought it expecting a better layer against your skin and got exactly that, than bought it expecting a transformation and sent it back.
What it is
Two pieces, both in the same fabric.
The label. 95% viscose made from bamboo, 5% spandex. A light, slightly stretchy jersey. Viscose takes up moisture more readily than cotton and far more readily than polyester, which is why it pulls damp off the skin instead of letting it sit there. Our comparison of bamboo viscose, cotton and polyester covers the fabrics side by side, including where each one falls short.
The Cool Set, $48. A drop-shoulder short-sleeve tee and full-length flare pants. No cuffs at the wrist or ankle, nothing that seals, a relaxed cut that skims rather than clings. Two sets are $84.
The Sleep Dress, $34. A loose short-sleeve dress with a round neck and side pockets. Opaque, not lined. Air moves in from below, which a two-piece cannot do.
Care. Machine wash cold, tumble dry low, away from towels and zips.
Why we write "viscose made from bamboo" every time
You will notice we never call it plain "bamboo". That is not fussiness. Turning the plant into a soft fiber is a chemical process, and what comes out is viscose, also called rayon. The Federal Trade Commission requires the name to say so. In 2022 it sought penalties of $2.5 million from Kohl's and $3 million from Walmart for selling rayon textiles under the plant's name alone, along with environmental claims about how they were made.
So you will not see us call our sleepwear "eco-friendly" or "antibacterial" either. Those are claims about the plant that the processed fiber does not reliably keep. If another brand's label says "bamboo" with nothing next to it, that tells you something about how carefully the rest of the page was written.
Where it falls short
We would rather tell you now than have you find out after the box arrives.
- The pants are full length. Some people who run hot will not want that. We do not have a shorts set yet. If you know you want less fabric, the dress is the better choice.
- The dress comes in black only.
- Stock is limited. Some sizes will sell out early, and when one is gone, the product page will say so.
- There are no reviews yet. We are a new shop, and the first reviews will come from the first orders. Until then, we are not going to fill the page with quotes from people you cannot check.
- It is made abroad. The garments are imported and ship to you from a warehouse in the US. The product pages say "Imported" because it is true.
None of these are reasons the pajamas do not work. They are reasons a particular person might not want them, and you should know them up front.
How it fits
Sizes run S to 3XL, which is US 2/4 through 22. The cut is relaxed: it skims the body, it does not cling, and it is not oversized. That room is the point. Heat leaves your skin through the air right next to it, and a cut that hugs you removes that air.
Every product page has a full size chart in inches. The most reliable way to use it:
- Take a top you already like sleeping in and lay it flat.
- Measure straight across the chest, armpit to armpit, and double it.
- Compare that number with the bust column on the chart. For the pants, do the same with the waist and hip of a pair you like.
Flat measurements beat the size on any tag, because sleepwear sizing is inconsistent from brand to brand. If you are still not sure, email hello@stillcoolsleep.com with your measurements and the piece you are looking at. A person reads those.
If it is wrong
You have 30 days from delivery to send anything back, as long as it is unworn, unwashed and has its tags on. To start a return, reply to your order confirmation or email hello@stillcoolsleep.com. There is no returns portal and no form to find.
We cannot do direct exchanges yet. If you need a different size, return the first one for a refund and place a new order for the size you want. It is one extra step, and we would rather say so here than have it be a surprise.
Shipping is free on every order, and orders ship from the US in 3 to 7 business days.
The short version
Our pajamas will not stop night sweats, will not cool you down on their own, will not fix a hot bedroom, and will not change your life. What they are is a light, loose layer of viscose made from bamboo that lets heat and damp leave your skin instead of holding them there. The pants are full length, the dress is black, stock is thin, there are no reviews yet, and you have 30 days to send it back if it is wrong.
If that sounds like what you were looking for, the Cool Set and the Sleep Dress are in the shop, and the 60-second quiz will help you pick between them. The first 100 orders get 15% off with code FOUNDING15.