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Ideal sleeping posture and ultra-dispersion of body pressure
A mattress that changes your wake-up
BRAIN SLEEP PILLOW
BRAIN SLEEP PILLOW
¥33,000
Regular price
Sale price
¥33,000
Unit price
/
per
Tax included.
送料無料
2906 in stock
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¥44,550(税込)
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BRAIN SLEEP PILLOW care Instructions +
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.
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 +
100% Polyethylene
Sizes +
LOW: Approx. 60 × 35 × 6 (8) cm / Approx. 490 g
STANDARD: Approx. 60 × 35 × 9 (11) cm / Approx. 650 g
HIGH: Approx. 60 × 35 × 12 (14) cm / Approx. 930 g
STANDARD: Approx. 60 × 35 × 9 (11) cm / Approx. 650 g
HIGH: Approx. 60 × 35 × 12 (14) cm / Approx. 930 g
Country of origin +
Japan
Warranty +
Includes warranty card and user guide
Warranty period: 1 year
Warranty period: 1 year
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.
×
Faster. Deeper. Brain-Level Sleep.Awaken You Possibilities for Tomorrow.
Experience deep restoration and awaken at your strongest,
even with limited hours of sleep.
The only pillow that brings
together the full science of
“THE STANFORD METHOD
FOR ULTIMATE SOUND 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.
Improving sleep quality begins with one essential element: the pillow.
In fact, even with one hour less sleep,
recovery and morning alertness can improve.
Sleep is not just about time.
It’s about 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.
The key to deeper sleep is
COOLING THE BRAIN
The Brain Sleep Pillow cools the brain by
preventing heat buildup through exceptional breathability.
ADDITIONALLY
It provides a personalized fit,
adjusting to each person’s head size and sleeping style.
With every night’s sleep, it gradually adapts to your mattress,
your head size and your sleeping style.
With every night’s sleep, it gradually adapts to your mattress, your head size and your sleeping style.
Patented Technology
Achieving a Personal Fit with
3LAYER×
9GRADATION
[A unique structure of fibers with varying thickness and density]
BRAIN SLEEPER
User Voices
*Individual results may vary.
AWAKEN
YOUR
POSSIBILITY.
TECHNOLOGY
01Cool your brain
Cool your brain for faster, deeper sleep
Over 90% of the material is made of air layers, preventing heat and moisture from building up and creating a comfortable sleep environment.
Deepen the sleep that defines your overall sleep quality — the “golden 90 minutes”
Brain sleep pillow was shown to have a higher proportion of deep sleep during the first sleep cycle (the “golden 90 minutes”), which plays a key role in determining overall sleep quality, compared with general functional pillows.
Even with one hour less sleep, fatigue recovery reaches 116%.
When comparing six hours of sleep using the Brain sleep pillow with seven hours of sleep using a standard functional pillow, results showed that six hours of sleep with the Brain Sleep pillow led to a 16% increase in fatigue recovery.
View detailed evidence
Perceived improvement in sleep quality
Compared with typical functional pillows, Brain Sleep pillow showed higher subjective evaluations related to alertness, sleep onset, and fatigue recovery.
High level of heat dissipation prevents heat from accumulating
BRAIN SLEEP pillows feature a highly breathable material that retains significantly less heat than other materials, inducing high-quality sleep throughout the night.
02Personalized fit
The three-layer and nine-gradient structure developed with Japanese patented technology, allows the pillow to fit and adapt to individual sleeping
Designed with patented technology, the 3-layer, 9-graduation structure gradually adapts to your head size and sleeping posture, eventually evolving into a pillow uniquely attuned to your personal sleep.
A new level of comfort
A fit beyond custom-made
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
The three-layer structure also balances surface softness with the durability needed for everyday use.
Fits more comfortably with every use
Reduces strain on the head and neck
Test Method:
Head pressure distribution was measured on the first day of pillow use and after one week.
Subject: Male, 169 cm, 62 kg
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
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.
Minimal dust mites growth
Compared to other materials, 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.
CARE
CARE
Restore its loft with a showerIf the pillow’s height no longer feels right, a warm shower at around 45–50°C will help restore its original loft.
Exceptional durability for long-term useDurability is essential for a pillow used every day.
This product has demonstrated high durability in testing equivalent to six years of use (43,200 compression cycles).
Comfort remains consistent even over long-term use.
*Actual durability may vary depending on usage conditions.
*Based on testing of the BRAIN SLEEP PILLOW Standard model.
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.
Seriously Tackling Japan's Sleep Challenges
Born in Kusu Town, Oita Prefecture, the Brain Sleep Pillow.
Crafted with care, one by one, through patented technology and artisan expertise.
SPEC
Size
Available in three height sizes
-
LOW
-
STANDARD
POPULAR
-
HIGH
Size Comparison
Chart
One free size exchange is available within 30 days of delivery.
View more details
Material
Material
100% recyclable,
sustainable materials
The BRAIN SLEEP pillow is made from 100% recyclable, earth-friendly materials.
We are committed to using sustainable materials that minimize environmental impact.
Material: 100% polyethylene
Cover
Available in two specialized covers.
Active Air
Crafted from a premium, highly breathable mesh fabric, the cover delivers exceptional comfort with no stickiness, while offering water absorption, rapid drying, and advanced antibacterial and deodorizing properties. Even after washing, it dries quickly—keeping the pillow fresh and reliable, even through stretches of rainy days.
Breathability / Antibacterial /Odor control / Moisture-absorbing and quick-drying / Deodorizing / Anti-static / Anti-mold / Pollen-repellent / Dryer-safe
100% Polyester
Organic Sleep
Made from 100% organic cotton grown in fields cultivated for over three years without agricultural chemicals or synthetic fertilizers, this cover combines the purity of natural materials with advanced functional technology to ensure lasting cleanliness and exceptional comfort.
Antibacterial & deodorizing / Quick-drying absorption / Anti-static / Anti-mold / Pollen-repellent / Hybrid-touch fabric
100% Cotton
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)
FAQFrequently asked question
Is there any support for long-term use?
Yes, you can exchange your pillow for a new one with ¥10,000 off on your next purchase.
For more details, please see here.
※Web purchase and membership registration required.
If the pillow doesn’t feel like the right height
We recommend this three-step maintenance routine once every 1–2 months.
STEP 1: Pour 45–50°C (113–122°F) warm water over the pillow for around 60 seconds
Place the pillow on a flat surface and pour warm water over any areas that feel compressed.
Avoid pouring hot water while the pillow is leaning against a surface, as this may cause deformation.
STEP 2: Rinse with cool water for around 15 seconds to set the loft
Tap water at normal temperature is sufficient.
Note: During extremely hot summer months, tap water may be warmer, which can reduce effectiveness.
STEP 3: Air-dry in a well-ventilated, shaded area
Lay the pillow flat to dry.
Avoid direct sunlight and high-heat drying.
If you wish to speed up drying, wrap the pillow in a towel and gently shake to remove excess water.
For all other products, size exchanges are not available.
Please note that only one exchange is provided, and we cannot offer additional exchanges or returns after an exchange has been made.
To ensure an optimal fit depending on your condition that day, we also offer the BRAIN SLEEP PILLOW Adjust Sheet, which allows you to adjust the pillow’s height.
For exchange requests, please submit the following information through the contact form.
Please note that the exchange service is available only for purchases made through the BRAIN SLEEP OFFICIAL SITE or official online stores (Rakuten, Yahoo! Shopping, Amazon).
*To verify purchase history during an exchange request, the order number will be required.
----------------------------------------------------
【Order Number】：
【Purchased Size】：
【Requested Size for Exchange】：
【Period of Use (please try one week before requesting an exchange)】：
----------------------------------------------------
If you would like to request an exchange, please send us the following information via the Inquiry Form.
※ Exchange services are only available for purchases made through the BRAIN SLEEP Official Site or the BRAIN SLEEP Official Online Stores (Rakuten, Yahoo! Shopping, Amazon).
※ To process your exchange request, we will confirm your order number to verify your purchase history.
Available at Our Retail Stores
You can also purchase at our retail stores. Product availability varies by location,
so please check here for details.
How to care for your pillow
If you’re concerned about odors or stains:
The pillow cover is machine-washable. Please follow the care label instructions.
The pillow core 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.
How to find the right height for me?
We recommend choosing the height that best suits your build and personal preference.
In general, STANDARD works well for most people.
If you prefer a higher pillow, choose HIGH; if you prefer a lower profile, LOW is recommended.
How to attach the BRAIN SLEEP PILLOW COVER (ORGANIC SLEEP)
Place the pillow inside the cover with the mesh side facing down and the firm side facing up.
After tucking the flap of the cover inside and adjusting it, flip the pillow over so the mesh side is on top.
※Please make sure that your head rests on the mesh side.
How to tell the front and back of the pillow
The pillow has a tag that indicates which side is the front.
Please use it with the tag facing down. Do not remove the tag.
If the tag becomes unrecognizable, you can determine the correct sides by the texture - the side with finer, softer fibers is the front, and the side with thicker, firmer fibers is the back.
Storage precautions
When not using the pillow during the day, keep it in a cool, dry place and avoid placing anything on top.
Avoid direct sunlight and places with high temperatures or humidity.
BRAIN SLEEP PILLOW
PERFECT COOL
Keep summer nights cool.
Fall asleep faster, sleep deeper—down to the brain.
Each pillow comes with an ice pack that keeps the head cool even in extreme heat.
Purchase now
BRAIN SLEEP PILLOW
NECK CONDITIONING
Align your body as you sleep, guiding your neck into its ideal curve
A cervical–curve–aligning pillow supervised by a sleep-specialized acupuncture and massage studio.
Purchase now
BRAIN SLEEP PILLOW
SNORELESS
Reduce snoring
and encourage side sleeping for a more restful night.
A pillow designed with clinical expertise in snoring and sleep apnea, crafted with a dedicated focus on reducing snoring.
Its crown-wave contoured design supports a side-sleeping posture and helps improve airway alignment.
Products comparison
For Those Unsure How to Choose the Right Pillow
Key Point 1: Understanding the Ideal Pillow Height
- ✓ The eyes naturally face slightly downward
- ✓ The neck and shoulder muscles remain relaxed
- ✓ The throat is not compressed, allowing easier breathing
A pillow that is too high or too low can put strain on the neck.
If the back of the head is elevated, the neck may be compressed, leading to stiffness, discomfort, or even snoring.
Conversely, a pillow that is too low cannot support the head properly and increases the load on the neck and shoulders.
For an ideal sleeping posture, the head and neck should form an incline of about 10–15 degrees when lying on the back, with the head positioned slightly—about 0–5 degrees—below the face.
Key Point 2: Back sleeper or side sleeper? Choosing the right pillow based on your sleeping position
-
When sleeping on the side, the ideal pillow height is one that allows the cervical spine to maintain a gentle S-curve, similar to when standing upright.
Choosing a pillow height close to the thickness of the shoulder helps achieve proper alignment. -
For back sleepers, the ideal pillow height is one that keeps the line from the head to the upper back straight, as it would be when standing.
A height close to the thickness of the shoulder generally provides the best fit.
Some people who prefer the Low height when sleeping on their back may find the Standard height more suitable for side sleeping.
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