Developed yarn and fabric
from scratch for ultimate coolness

We developed an ultra-fine yarn consisting of approximately 100 fibers, with a cooling nylon core and an even cooler polyethylene outer layer.
This ultra-fine yarn is knitted together with nylon and polyurethane yarns using a special technique.

Dual Cooling Technology: Contact Cooling

Instantaneous coolness upon wearing:
the ultimate contact cooling

260% cooling effect!
By adopting our proprietary cooling fiber, we achieved a contact cooling value of 0.524, the highest level, for ultimate coolness.

*Cooling value of approx. 260% compared to contact cooling (q-max: W/cm²) standard of 0.2

Dual Cooling Technology: Moisture-Wicking Cooling

Ultimate moisture-wicking cooling:
up to -7.7°C from moisture during sleep

Utilizes a special material that lowers temperature by absorbing moisture and sweat generated during sleep. Effectively provides coolness until morning. Cooling function confirmed to be maintained even after 50 washes.

In experiments, a subject wearing sleepwear was sprayed with mist to simulate sweating, and the surface temperature was measured with a thermograph, resulting in an ideal sleep environment temperature of 26.3°C.
(60 sprays of mist, approx. 6.5g of water)

Absorbs moisture and
effectively converts it into cooling sensation

An innovative technology that provides a cooling sensation while eliminating stuffiness, keeping you comfortable while you sleep. In experiments, we confirmed a drop in water temperature when a moisture-absorbing component was added to the water on the right side.

Because you wear it every day,
always keep it clean with antibacterial and deodorizing treatment.

The fabric is treated with an antibacterial and deodorizing finish to prevent the growth of bacteria in summer.

High efficacy and wash durability

It is 2.5 times more effective than the antibacterial and deodorizing standard (antibacterial activity value of 2.2), and its effectiveness remains unchanged even after 10 washes.

Stress-free with a two-layer fabric construction

The inner layer is smooth, gentle on the skin, and uses a water-absorbent and diffusing cooling fabric. The outer layer is made of 100% highly moisture-absorbent cotton, designed to be gentle on the skin and efficiently disperse stuffiness. It is said that people sweat more than 500ml during sleep in summer, but with this highly water-absorbent and diffusing fabric, you can sleep comfortably.

Eliminates uncomfortable stuffiness during sleep

The combination of highly absorbent and moisture-wicking materials absorbs and releases humidity, which is a major enemy to sleep, and effectively regulates humidity, keeping you comfortable even when you sweat.

Designed not to constrict the body
for comfortable sleep

This sleepwear is designed to reduce stress by keeping a comfortable range of motion, with larger armholes and eliminating excessive constriction from elastic and ribbing. This ensures comfort during pre-sleep relaxation and doesn't hinder turning over during sleep.

The reinforced neckline prevents deformation and stretching, keeping the neckline looking neat.

The T-shirt hem has a gentle curve, and both sides have slits, creating a refreshing look.

Difficult to see through and
less prone to sweat stains, even when worn alone

The two-layer fabric design makes it less transparent and less prone to sweat stains, even when worn alone, so it can be worn casually and is designed for easy short outings.

Sweat stain experiment

Even when sprayed with water on the back side, simulating sweat, no stains appeared on the front side.