BRAIN SLEEP PILLOW PERFECT COOL

BRAIN SLEEP PILLOW PERFECT COOL

1 10
color: blue
size
¥36,300
¥36,300
Tax included.
送料無料

277 in stock

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BRAIN SLEEP PILLOW PERFECT COOL care instruction +

・Rinse gently with lukewarm water in the shower and let it air-dry in a well-ventilated, shaded area.
・Avoid hot water or blow-dryers, as heat may cause the material to deteriorate.
・Do not use a washing machine, dryer, or iron.
・If using detergent, choose something gentle and neutral; avoid chlorine-based bleach.
・When drying outdoors, avoid direct sunlight and always dry the pillow in the shade.

Materials +

◾️Pillow
100% Polyethylene

◾️Ice Pack
Outer fabric: Polyester, PVC
Filling: Water, super-absorbent polymer, preservative

Sizes +

◼︎Pillow
Approx. 60 x 35 x 9(11)xm

◼︎Ice pack
Approx. 53 x 8cm / Approx. 345g
When folded: approx. 18 x 8cm

Country of Origin +

Inner materials: JAPAN

Warranty +

Includes warranty card and user guide
Warranty period: 1 year
*Only applicable to inner materials

Proteger Extended Warranty +

The extended warranty must be purchased at the same time as the product. We cannot accept orders for the warranty alone. It is different from the service that comes with the product.
View full details

#TV

Cool comfort
for summer nightsFaster. Deeper. Brain-level sleep.

Sleep is not just about time.
It’s about quality.

スタンフォード式 最高の睡眠

The only pillow that brings together the methods of “Stanford-style ultimate sleep”.

We spend nearly a third of our lives asleep.
When sleep quality is poor, the brain and body do not fully rest, making it difficult to perform at their natural best.
Because sleep products are part of our everyday lives, why not reconsider sleep from the perspective of quality?

“The Golden 90 Minutes” shape the quality of your sleep.

For people in Japan who often struggle to secure sufficient sleep time, enhancing the depth of the first 90 minutes of sleep can help improve the overall quality of the sleep cycle.

Cooling the brain is essential

Cooling the brain
is essential

During summer, when ambient temperatures are high, core body temperature tends to decline less easily. This can also affect sleep quality.

During summer, when ambient temperatures are high, core body temperature tends to decline less easily. This can also affect sleep quality.

That is why cooling the brain
efficiently supports faster,
deeper sleep.

Compared with the BRAIN SLEEP PILLOW

In a summer sleep environment,
changes in
surface temperature around the head were measured
when using the BRAIN SLEEP PILLOW
and the BRAIN SLEEP PILLOW PERFECT COOL.
As a result, the decrease in temperature
was approximately three times greater.

Cooling the brain, while maintaining comfortable sleep.

Designed specifically
for summer sleep:
BRAIN SLEEP PILLOW PERFECT COOL

Cooling the brain for
comfortable sleep
A pillow designed for
summer sleep

TECHNOLOGY

01Cool your brain

Cooling the brain for faster, deeper sleep on hot summer nights

Over 90% of the material is made of air layers, preventing heat and moisture from building up and creating a comfortable sleep environment on hot, humid summer nights.

The “golden 90 minutes” that define sleep quality
Sustained cooling performance

By cooling the head during the first sleep cycle—the “golden 90 minutes” that define sleep quality—comfortable sleep can be maintained even during challenging summer nights.

An ice pack specially designed for comfort
without compromising airflow

The gel remains flexible and does not harden, even after cooling in the freezer, preserving sleep comfort during use.
The ice pack is sized to complement the BRAIN SLEEP PILLOW’s super-breathable structure, allowing heat and moisture to dissipate without building up inside the pillow.
In summer, the ice pack can be cooled in the freezer; in spring, autumn, and winter, it can be cooled in the refrigerator for year-round use.

02Comfort fit

Patented technology
3 layer, 9 gradation structure

An ice pack pocket is incorporated into the BRAIN SLEEP PILLOW’s 3-layer, 9-zone gradation structure, which is designed to support easy turning during sleep and gently conform to the head, reproducing the comfort of the BRAIN SLEEP PILLOW.

An entirely new level of fit

Countless fibers act like springs, providing responsive support while gently embracing the head in every direction with a distinct soft resilience.

Adjust layer: gently adapts to the shape of the head
Support layer: firmly supports the head and neck
Base layer: firm structure that allows air to escape from below
Ice pack pocket / ice pack: A minimally sized pocket designed not to interfere with comfort, paired with an ice pack that remains soft even after freezing

Supports every sleep position

Built to be more supportive toward both sides, the BRAIN SLEEP pillow prevents excessive sinking when side-sleeping, helping maintain proper alignment.
It fits a wide range of sleep positions—from side-sleeping to back- or stomach-sleeping.
The 9-graduation structure also supports smooth and effortless turning during sleep.

03Super clean

Easily washable under running water

It is said that the body perspires about one cup (approximately 200 ml) of sweat during sleep.
With its high excellent breathability, moisture is less likely to accumulate, and the pillow can be washed with water and dries quickly, allowing it to be kept clean at all times.

View detailed evidence
カビの発生が少ない

Minimal mold growth

Compared to other materials, this product shows a significantly lower level of mold growth.
It is also recommended for those sensitive to house dust or allergies, as well as for families who sleep with young children.

ダニの発生が少ない

Minimal dust mites development

Compared to other materials, the BRAIN SLEEP pillow shows a significantly lower level of dust mite development.
This makes it a considerate option for those sensitive to house dust and for households with small children.

MADE IN JAPAN

MADE IN JAPAN

Meticulous craftsmanship,
trusted qualityEach mattress and pillow is carefully crafted, with skilled technicians and artisans conducting repeated quality checks by hand.
After passing rigorous inspections, each item is meticulously packaged and delivered with care.

Natural spring water with minimal impurities is used to prevent quality degradation

The production process uses natural spring water from Shimizu Bakuen, designated as one of Toyonokuni’s 15 Famous Waters—a special soft water with exceptionally low levels of impurities.
By using such pure water, unnecessary chemical reactions are avoided, helping to prevent any deterioration in quality.

SPECSpecifications

Size

The BRAIN SLEEP PILLOW PERFECT COOL is available in a standard size only,
with no Low or high size options.

Pillow-specific ice pack
When folded

Folds compactly to fit inside a freezer or refrigerator.

Special package

Special package

Package exclusive for BRAIN SLEEP PILLOW PERFECT COOL

Delivered in a silver, summer-inspired bag.
*The bag is not intended for use as an insulated cooling bag.

Material

Material

100% recyclable, sustainable materials

The pillow is made from 100% recyclable, earth-friendly materials.
We are committed to using sustainable materials that minimize environmental impact.
Material: 100% polyethylene

Cover

Pillow cover
Perfect Cool EX

Featuring a contact cooling performance rated at 260% of the standard benchmark, this pillow cover combines contact cooling with moisture absorption to deliver an enhanced cooling sensation.
Simply insert the pillow into the cover to efficiently cool the head.

Contact cooling / Moisture-absorbing cooling / Moisture dispersion

*Compatible with BRAIN SLEEP PILLOW sizes: LOW, STANDARD, and HIGH

Materials
Outer fabric:
Composite fibers (polyethylene / nylon) 46%
Nylon 44%
Polyurethane 10%
Inner fabric: 100% polyester
Lining: nylon 50% / polyester 50%

GIFTBOX

Perfect as a Gift

This gift box is sized to hold one BRAIN SLEEP PILLOW and one pillow cover.
The exterior features an elegant embossed logo, and when you open the lid, you’ll find the message “GIFT YOU THE BEST SLEEP.”
A thoughtful design that helps you share your care with someone special.

Size: W62cm x D37.5cm x H21cm
Gift box: ¥1,100 (tax included)

CAMPAIGN

Save more on the second pillow

Purchase two pillows at the same time and receive 10% off the second one.

Eligible pillows BRAIN SLEEP PILLOW / NECK CONDITIONING / SNORELESS / PERFECT COOL

Recommended situations
  • ご家族・パートナー用
  • 贈りもの用
  • 来客用・予備用
  • 洗い替え用
  • 使い分け用
ご家族・パートナー用
贈りもの用
来客用・予備用
洗い替え用
使い分け用

For the most comfortable sleep
in summer

RELATED PRODUCTSRelated products

For those seeking an even cooler sleep experience

Comforter
Perfect Cool EX

￥24,200(tax included)～

Delivers peak contact cooling along with moisture-absorbing cooling to maintain a refreshing feel throughout summer nights.
The reversible design features a cooling side that feels cool on contact, and a reverse side that absorbs and disperses moisture for dry, comfortable sleep.

Learn more

Mattress Protector
Perfect Cool EX

￥14,300(tax included)～

Made with Perfect Cool fabric, this mattress protector features an all-around elastic design for easy attachment and removal, offering a simple box-sheet style solution for mattresses.

Learn more

Products comparison

FAQFrequently asked questions

How to care for your pillow

[PILLOW]
▼If you’re concerned about odors or stains:
The pillow cover is machine-washable. Please follow the care label instructions.
The pillow can be rinsed with water.
Rinse it using a shower set to lukewarm water (around 40°C).
After rinsing, dry it in a well-ventilated, flat area avoiding direct sunlight.
If odors or dirt are particularly noticeable, use a mild neutral detergent.

▼When caring for the pillow:
Avoid bending or placing heavy objects on the pillow, as it may cause creases or dents.
Do not use water hotter than 51°C. Continuous exposure to direct sunlight may also damage the material.
Always air-dry the pillow in the shade.

[Ice pack]
If the ice pack becomes dirty, gently wipe it with a tightly wrung, damp towel.
Machine washing is not recommended.

What should I keep in mind when storing the pillow?

[Pillow]
When the pillow is not in use during the day, avoid high temperatures and humidity, and do not place weight on top of it. Please also avoid direct sunlight and high-temperature areas.

[Ice pack]
If stored while wet, mold may develop, so be sure to store the ice pack in a dry condition. Keep it out of reach of small children and pets. When storing, avoid placing heavy objects on top of the ice pack.

Can I use pillow covers other than the “BRAIN SLEEP Pillow Cover Perfect Cool EX,” such as Organic Sleep or Active Air?

Yes, they can be used. However, the BRAIN SLEEP Pillow Cover Perfect Cool EX is recommended for summer use, as it offers enhanced cooling performance and ensures greater comfort even in hot conditions.
For seasons other than summer, switching to Organic Sleep or Active Air covers allows comfortable use throughout the year.

Can I exchange the size?

This product is available in one standard size only, and exchanges for other pillow sizes are not accepted.

How to attach the pillow cover

Place the pillow cover with the mesh side facing down and the firmer side facing up, then insert the pillow. After adjusting the internal flap, turn the pillow over before use.
*Please ensure that your head rests on the side with the mesh surface when using the pillow.

How to tell the front and back of the pillow

A label is attached to the pillow to indicate the front and back sides.
If the label is missing or unclear, please check the texture: the side with finer, softer fibers is the front, while the side with thicker, firmer fibers is the back.

Is air conditioning unnecessary when using this pillow?

During recent summers, extreme heat has become more common, and cases of heat-related illness during sleep have increased.
Therefore, we recommend using air conditioning in combination with the pillow, depending on the room temperature.

Can I use this product in seasons other than summer?

Yes. For seasons other than summer, we recommend cooling the ice pack in the refrigerator before use.
Even if you choose not to cool the ice pack, placing it inside the ice pack pocket of the BRAIN SLEEP PILLOW PERFECT COOL allows you to enjoy a fit and comfort similar to that of the standard BRAIN SLEEP PILLOW.

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