The ultimate in cooling sensation and moisture absorption The ultimate cooling
sleepwear

Ranked # 1
in the summer bedding category on Makuake
Perfect Cool Series from

Comfortable ways to endure the prolonged heatwave
Innovative
Ultimate cooling sleepwear
Appearance!

In 2023, the average temperature
in Japan will reach a record high.
Sleepwear is a solution to the tropical nights in Japan.

Sleepwear will keep you
comfortable during hot,
sleepless nights .

Top and bottom set

¥15,400 (tax included)

Size: S/M/L
Color: Black/Medium Gray

Buy now

TECHNOLOGY

01PERFECT COOL

01 PERFECT COOL


The ultimate double cooling sensation with cooling sensation to the touch and moisture absorption

The cool feeling when you put it on and the moisture absorbing cool feeling while you sleep ensures comfort.


Developing yarn and fabric from scratch in pursuit of the ultimate cooling sensation

The core of the thread is made of cooling nylon, and the surrounding area is made of polyethylene, which has an even greater cooling effect, to develop an ultra-fine thread consisting of approximately 100 fibers.
This ultra-fine thread is then woven together with nylon and polyurethane threads using a special technique.


The ultimate cooling sensation from the moment you put it on

Cooling effect of 260%!
Using our proprietary cooling fiber, the cooling effect value is the highest level of 0.524, achieving the ultimate coolness.

* Cool sensation value of approximately 260% of the standard 0.2 (q-max: W/cm2 )


The ultimate moisture absorption cooling effect that absorbs moisture while you sleep and cools you down to -7.7℃

The special material absorbs moisture and sweat that occurs while you sleep, lowering your temperature. It keeps you cool until morning. It was confirmed that the cooling effect was maintained even after 50 washes.

In the experiment, subjects wore sleepwear and misted the clothing with water, simulating sweating. When the surface temperature was photographed with a thermograph, it reached 26.3°C, the ideal sleeping environment temperature.
(60 mist applications, approximately 6.5g of water)

Absorbs moisture and
effectively transforms it into a cooling sensation

This innovative technology keeps you cool while eliminating stuffiness, keeping you comfortable while you sleep. In an experiment, when the moisture-absorbing ingredient was added to the water on the right, a drop in the water temperature was confirmed.

02SUPER CLEAN

02 SUPER CLEAN

Antibacterial and deodorant treatment
keeps you clean every day, even in summer

It can be easily washed at home and its strong antibacterial and deodorizing properties keep it clean every day.

Since it's something you wear every day,
it's antibacterial and deodorizing to keep it clean.

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

Highly effective and washable

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

Stress-free with two-layer fabric

The surface is smooth and has little friction on the skin, and is a cool fabric that absorbs and disperses moisture. The surface is made of 100% highly absorbent cotton fabric, which is gentle on the skin and designed to efficiently disperse moisture. It is said that you will sweat more than 500ml when sleeping in the summer, but the highly absorbent and dispersive fabric allows you to sleep comfortably.

Eliminates the unpleasant stuffiness while sleeping

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

03RELAX&
COMFORT

03 RELAX &
COMFORT


Designed for increased comfort without constricting the body

The loose fit and elastic and ribbing are designed not to constrict the body as much as possible, allowing you to relax and not restrict the necessary turning over.


A design that does not restrict the body
for a comfortable sleep

This sleepwear reduces stress by maintaining a comfortable range of motion, with larger armholes and no excessive tightness from elastic or ribbing, to ensure comfort when relaxing before falling asleep and to allow you to turn over while sleeping.

By increasing the strength of the neckline, it prevents deformation and stretching, and keeps the neckline looking beautiful.

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

Even when worn alone, it is not see-through and
does not easily show sweat stains.

The two-layer fabric design makes it less see-through even when worn alone and less prone to sweat stains, making it easy to wear and perfect for short outings.

Sweat stain experiment

Even when I sprayed the back side with a spray bottle in anticipation of sweat, there were no stains on the front side.

SPEC

COLOR

Available in two colors: black and medium gray

UNISEX SIZE


Unisex size that can be worn regardless of gender, age, or body type.

Male model: Height 180cm / Wearing size L
Female model: Height 166cm / Wearing size S

■対応サイズガイド(ユニセックス) (CM)

■ Compatible size guide (unisex)

■ Product size

■Material

Outer fabric: 100% cotton

Lining: Composite fiber (polyethylene/nylon) 46% / nylon 44% / polyurethane 10%

The most comfortable
summer sleep

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FAQ

Can I do laundry?

Yes, it can be washed in a home washing machine. Please put it in a laundry net and wash it with water. Since it is a dark color, please wash it separately from white and light colored items. Also, please avoid using bleach (chlorine or oxygen-based).

Can it be put in the dryer?

Do not tumble dry and hang dry in the shade out of direct sunlight.

Can I iron it?

Please refrain from ironing as high temperatures may cause deterioration of the fabric.

Does the surface easily get stained by sweat?

The fabric on the skin side is a two-layer structure made of fabric with excellent moisture absorption and diffusion properties, making the garment less likely to stain with sweat.

What colour is it?

Available in two colors: black and medium gray.

How do I choose the size?

This is a unisex size with a loose fit. Please refer to the size guide on the page to choose your size.

What seasons can it be used in?

The main function of this short-sleeved T-shirt and shorts is to provide a cooling sensation, so they are perfect for use during the hot and uncomfortable summer months.

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Brain Sleep Wear Perfect Cool

Brain Sleep Wear Perfect Cool

¥7,700
Regular price Sale price ¥7,700
Tax included.
category
color
size

317 in stock

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Brain Sleep Comforter Perfect Cool EX
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¥24,200 税込
Brain Sleep Coin
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¥8,800 税込

Brain Sleep Wear Perfect Cool Usage Precautions +

-Please use a laundry net when washing.
・Please keep the shape and dry.
-Please note that due to the characteristics of the fabric, the color of this product may transfer to other items if rubbed hard or when rubbed in a wet state.
- Wash separately from white and light-colored products.
-Due to the characteristics of the fabric, if pilling occurs due to friction when wearing, please remove it with a pilling remover.
-Please avoid ironing.

Brain Sleep Wear Perfect Cool Size +

Tops
S: Length 66/70cm Width 57cm Hem width 21cm Shoulder width 55cm
M: Length 68/72cm Width 60cm Hem width 22cm Shoulder width 57cm
L: Length 70/74cm Width 62cm Hem width 23cm Shoulder width 59cm

pants
S: Total length 50cm, waist width 34cm, hips 101cm, inseam 21cm
M: Total length 53cm, waist width 36cm, hips 105cm, inseam 23cm
L: Total length 55cm, waist width 38cm, hips 109cm, inseam 24cm

Brain Sleep Wear Perfect Cool Material +

Outer fabric: 100% cotton
Lining: Composite fiber (polyethylene/nylon) 46% / nylon 44% / polyurethane 10%

View full details

Customer Reviews

Based on 29 reviews
66%
(19)
14%
(4)
7%
(2)
10%
(3)
3%
(1)
A
Apple
エアコンが効いた場所で効果バツグンです。

願わくば夏場はエアコン12度くらいにして生活をしたいと思ってはいるのですが、
奥さんに怒られて27度にさせられたり、職場では温度設定が固定で苦しめられておりました。
この商品のおかげで在宅も出勤も快適に過ごせるようになりました。
私服として活用しております(笑)
ズボンだけ履き替えればそのままパジャマになるので面倒くさがりの自分には大変有難いです。

車田浩之
こんなに涼しいとは

最初涼し過ぎて汗もかいてない気がして体に悪いかもどう思ったらサラッとしてたからわからなかっただけでちゃんと汗はかいていたので安心しました。

カフェオレ

着用した瞬間、本当に冷たい。そのうち体温でぬるくなってしまうが、クーラーの効いた部屋だと、また冷たく感じるようになる。快適。

くりすけ

着用したときのひんやり感は感動もの、
でしたが、寝ていたら暑くて目が覚めました。
朝までぐっすりとは、行きませんでした。
期待していただけに、残念です。

クリコ

着用時のひんやり感は感度もの、でしたが、
寝ている間に暑くて目が覚めました。
朝までぐっすりとは行かなかったのは、期待していただけに残念です。

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