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

NightCool is our best fabric for cooling sleepwear. Behind it is Kottinu, a performance microfiber made for firefighter base layers and medical scrubs, now breathable cooling pajamas for hot sleepers and night sweats. The fibre is spun from filaments finer than a human hair. It pulls sweat off your skin, spreads it out, and dries fast, so heat leaves with the moisture. Read the science behind Cool-jams sleepwear.

A technical synthetic is a fibre engineered for a job rather than chosen for cost. Kottinu was developed for firefighter base layers worn under turnout gear and for medical scrubs, where staying dry through a long shift is the entire point. That is the fibre NightCool is made from.

Three things do the work, and none of them is the fibre’s name. The filaments are spun finer than a human hair, which gives moisture far more surface to travel along. Several are twisted together, so moisture moves out along the thread instead of pooling where it landed. And the knit is built open enough for air to reach that moisture and carry it away.

The result is a three step process: sweat is pulled off your skin, spread across the outer surface, then evaporated into the air, and body heat leaves with it. That is what keeps it working through the night rather than only feeling cool the moment you touch it. Read the science behind Cool-jams sleepwear.

It depends entirely on how it is built. Heavy, tightly woven polyester does trap heat, which is where that advice comes from. NightCool is the opposite construction: an ultrafine filament knitted open enough to move air, so moisture is carried to the surface where it can evaporate instead of sitting against your skin. Breathability comes from the knit, not from the fibre’s name.

If you are comparing fabrics, look at construction rather than the fibre name: a loose cut so air can move, a knit that carries moisture outward rather than holding it, and a fabric that dries quickly so you are not lying in damp cloth once a sweat passes.

Most of the line. Cooling pajama sets, cooling nightgowns and nightshirts, plus tops and bottoms you can mix yourself, all in NightCool. Start with women’s cooling sleepwear, or go straight to cooling pajama sets or cooling nightgowns for women.

Yes. Men’s sleep shirts, pajama tops and pajama bottoms, all in the same NightCool fabric. Shop men’s cooling sleepwear.

Menopause is why most of our customers find us, and NightCool is what we point them to. It cannot stop a hot flash, but it moves the sweat off your skin and dries fast, so a rough moment is less likely to end in a soaked shirt and a sheet change. Shop menopause sleepwear for night sweats.

Because the fibre is a microfiber, spun far finer than standard polyester yarn and knitted for a soft hand rather than a slick one. Cotton-level softness without the sticky feel of many synthetic wicking fabrics. That cotton feel was the whole design brief.

No. The wicking comes from the fibre and the knit structure, not from a coating, so there is nothing to rinse away. Just skip fabric softener and dryer sheets. They leave a film that blocks moisture transport, and a re-wash in clear water brings the wicking back.

Yes. That is the 30-Night Cool Sleep Trial. Sleep in your NightCool items, wash them, and if they are still not right, start a return within 30 days of delivery. Worn and washed is fine. See how the trial works.