/eh/2025-01-08/173633966714069467/picture.png)
/eh/2024-12-24/173503345348979036/Favorite-Icon.png){kind=icon}
/eh/2025-07-08/1751962110204480194/picture.png)
/eh/2025-06-21/1750485478958537574/countryInfoIcon.png)
/eh/2025-06-21/1750485741321434291/Hi-Sign-in-My-Nihao.png)
/eh/2025-06-21/1750485837193896318/cart.png)
/eh/2025-06-21/1750485968202533847/cart.png)
/eh/2025-04-17/1744862476612819675/hot-img.png)
/eh/2025-11-07/1762504524550532584/header-icon.jpg){kind=icon}
/eh/2025-07-07/1751875582852206790/header-icon.png){kind=icon}
/eh/2025-07-07/1751875587886277738/header-icon.png){kind=icon}
Best in 7 days
Cuts down on snoring
Designed to encourage side sleeping for more comfortable rest
Sleep is not just about time.
It’s about quality.
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?
One in six people in Japan snores regularly.
This can also affect your partner’s sleep.
In Japan, it is estimated that around 20 million people snore.
Among them, approximately 3 to 5 million are thought
to have sleep-related breathing disorders, such as sleep apnea.
The cause of snoring:
A narrowed airway during back sleeping
Snoring occurs when the muscles that support the lower jaw lose tension during sleep, resulting in a narrowed airway. As these muscles loosen, gravity causes the soft palate and the base of the tongue to shift backward, narrowing the airway.
Side sleeping
is effective for reducing snoring
by keeping the airway open.
Up to 66% reduction in snoring
A crown wave–designed pillow that
encourages side sleeping
and reduces snoring
Recommended by a specialized clinic
for snoring and sleep apnea
At D Clinic Tokyo Wellness, a co-research partner of BRAIN SLEEP,
the BRAIN SLEEP PILLOW SNORELESS is recommended as part of an approach to snoring prevention,
with a focus on improving sleep posture.
Side sleeping can improve
breathing toward normal ranges
To help reduce the risk of sleep apnea, everyday lifestyle habits are considered important. This may include limiting alcohol consumption, adjusting the use of sleep medication, weight management for those affected by obesity, and improving sleep posture—such as shifting to a side-sleeping position.
Depending on the individual, these changes can help reduce the severity of sleep apnea.
In milder cases, breathing during sleep has been observed to improve toward near-normal ranges.
Director at Sleep Center
Nao Isaka
D Clinic Tokyo Wellness / Sleep and SAS Outpatient Services / MD, PhD
Certifications and qualifications
Certified Medical Specialist, Japanese Society of Sleep Research
Certified Otolaryngologist
Completed government-designated training for online medical consultations
(Ministry of Health, Labour and Welfare, Japan)
Director at Sleep Center
Nao Isaka
D Clinic Tokyo Wellness / Sleep and SAS Outpatient Services / MD, PhD
Certifications and qualifications
Certified Medical Specialist, Japanese Society of Sleep Research
Certified Otolaryngologist
Completed government-designated training for online medical consultations
(Ministry of Health, Labour and Welfare, Japan)
Keeps the airway open and reduces snoring.
For a quieter night—for partners, too.
TECHNOLOGY
01Crown wave
Reduce snoring
The crown wave design encourages side sleeping and supports smooth breathing
The gently contoured crown wave design helps maintain a side-sleeping position throughout the night.
By keeping the airway open during sleep, it supports smoother breathing and thus reduces snoring.
Naturally encourages side-sleeping
The crown wave shape gently encourages a side-sleeping position without placing strain on the body.
It promotes side sleeping without disrupting sleep.
Snoring reduced by 66%
In a study involving 10 participants who experience snoring, the duration of side sleeping and the frequency of snoring were measured during sleep.
When compared with a standard pillow, use of the BRAIN SLEEP PILLOW SNORELESS was associated with longer periods of side sleeping and a reduction in snoring frequency of up to 66%.
Dual-sided design to optimally support side-sleeping posture
Adaptable to individual preferences and body types
The pillow features a dual-sided design, with a soft side and a standard side,
allowing side-sleeping posture to be supported according to individual preferences and body types.
Reduces strain on the neck and shoulders
The neck support structure provides stable support for the neck, helping prevent excessive sinking of the head.
By maintaining proper side-sleeping posture, it reduces strain on the neck and shoulders during side sleeping.
02Super breathable
The super-breathable material naturally regulates temperature and humidity during sleep
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.
View detailed evidence
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.
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 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
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
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 and deodorizing / Deodorization / Moisture absorption and quick drying / Anti-static / Anti-mold / Pollen release / Hybrid catalyst
100% cotton
