374 in stock
ピローカテゴリの商品を2点購入で
2点目 10% OFF
※商品の金額が異なる場合は、割引は価格の低い商品に適用されます。
※割引後の価格はカート画面にてご確認いただけます。
※キャンペーン開催時は割引率が異なる場合がございます
※割引後の価格は、カート画面でご確認いただけます。
おすすめアイテム
×
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?
Sleep quality is largely influenced by the depth reached during the first 90 minutes after falling asleep.
When this “golden 90 minutes” remains shallow, longer sleep alone does not necessarily improve quality.
This BRAIN SLEEP mattress, designed with breathability in mind, helps lower core body temperature, guiding sleep toward greater depth.
Pursues exceptional comfort by minimizing and evenly dispersing the physical pressure placed on the body during sleep,delivering ultimate sleep through the combination of "ideal sleep posture" and "advanced pressure dispersion".
When the body is released in a weightless environment, the shoulders naturally settle inward and the legs rise slightly.
This posture is considered one of the least physically demanding positions for the human body.
Through its proprietary three-dimensional structure, the mattress creates a buoyant, floating-like rebound and adjusts firmness to the shoulders, lower back, and legs, guiding the body into ultimate relaxation—free from gravity.
The leg section is designed to sit 4 cm higher than the chest, encouraging smoother blood flow back toward the upper body. This positioning helps ease feelings of fatigue and swelling.
When compared with a flat mattress and conventional raised-foot designs, this product shows an approximately 1.5× increase in blood flow.
It is believed to help alleviate fatigue and swelling.
Countless fibers form a three-dimensional hybrid rebound structure, providing multidirectional support rather than support in a single plane.
This structure responds optimally to variations in body weight and surface area across different zones.
In addition, the proprietary seven-layer construction absorbs gravitational force and converts it into rebound energy—firmly supporting the body while helping maintain proper sleep posture.
Countless fibers form a three-dimensional hybrid rebound structure, providing multidirectional support rather than support in a single plane.
This structure responds optimally to variations in body weight and surface area across different zones.
In addition, the proprietary seven-layer construction absorbs gravitational force and converts it into rebound energy—firmly supporting the body while helping maintain proper sleep posture.
A wire-shaped support core, “Wire Wave,” features fibers of varying thickness designed to correspond to different areas of the body, supporting the body from within the mattress.
By accommodating differences in body pressure across each zone, it prevents excessive sinking and helps maintain an ideal sleeping posture.
The maximum difference between conventional spring mattresses and this product is just 2 cm.
Without placing strain on the body, the BRAIN SLEEP mattress provides stable support from the lower back to the hips—the heaviest area of the body—helping maintain proper sleeping posture.
By maintaining proper sleeping posture, the mattress enables smooth, effortless turning during sleep.
Its nine-layer structure repeatedly absorbs and rebounds in sync with body movement, supporting each turn throughout the night.
By minimizing energy expenditure during sleep, it reduces physical strain and helps maintain comfort until morning.
A seven-layer structure supports the body from multiple directions, supporting natural turning during sleep.
A proprietary three-dimensional fiber structure delivers exceptional breathability.
Every turn during sleep releases built-up heat and humidity.
To achieve quality sleep, maintaining proper temperature and humidity within the sleep environment is essential.
With over 90% of its structure composed of air layers, heat and moisture generated during sleep do not build up, creating a consistently comfortable sleeping environment.
Made with exceptionally breathable materials, this product releases heat generated during sleep as well as moisture from perspiration, helping keep the bed microclimate comfortable throughout the night.
Test method: a subject lay on the mattress for 20 minutes while covered with a towel blanket at rest.
Thermal images were taken before use and after 20 minutes using thermography.
The BRAIN SLEEP mattress features a highly breathable material that retains significantly less heat than other materials, inducing high-quality sleep throughout the night.
Conventional mattresses cannot be washed, and trapped moisture can lead to the growth of mold and dust mites.
As a result, frequent replacement is often unavoidable.
The BRAIN SLEEP Mattress is not only washable—its material itself resists moisture buildup, making it difficult for dust mites to thrive.
This allows the mattress to remain clean and hygienic overtime.
The cover can be removed and machine-washed, and the mattress itself is also fully washable.
The mattress can be rinsed clean in the shower, then simply air-dried in the shade—making maintenance easy and straightforward.
Typical urethane or coil mattresses tend to trap heat and moisture due to poor breathability, creating an environment where dust mites and mold are more likely to grow.
In contrast, the BRAIN SLEEP Mattress features excellent airflow, making it less prone to dust mites and mold. When house dust or dirt becomes a concern, the mattress can be washed at any time, helping maintain a consistently clean and hygienic sleep environment.
Compared to other materials, BRAIN SLEEP mattress shows a significantly lower level of mold development.
This makes it a considerate option for those sensitive to house dust and for households with small children.
Compared to other materials, BRAIN SLEEP mattress 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.
Everyday use makes durability a key concern when choosing a mattress.
This product has demonstrated high durability through compression testing equivalent to 80,000 cycles, in accordance with JIS standards.
Even with long-term use, it continues to deliver stable comfort.
*Durability may vary depending on usage conditions.
Each 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.
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.
A smart, minimalist design created to blend seamlessly into any space, with ease of use carefully considered.
Single: L195 × W100 × H15 (leg height 19) cm
Semi-double: L195 × W120 × H15 (leg height 19) cm
Double: L195 × W140 × H15 (leg height 19) cm
Queen: L195 × W160 × H15 (leg height 19) cm
Graduated firmness at the shoulder area
Topper sheet: uuter fabric: 100% cotton lining fabric: 100% polyester (filling: 80% polyester, 20% rayon)
Base cover: 100% polyester
Inner material: 100% polyethylene
The mattress core is made from 100% recyclable materials, designed with consideration for the environment.
The topper sheet that covers the top of the mattress is easy to attach and remove, making it convenient for rotation and machine-washing whenever needed.
The fabric is treated with antimicrobial and deodorizing processing to prevent the growth of bacteria and the development of unwanted odors.
Have questions about the product?
The development team will answer your inquiries directly. Please feel contact us.
Building on the core features of the BRAIN SLEEP MATTRESS FLOAT—including exceptional breathability, water-washable design, and support for an ultimate relaxation posture—this high-end model further elevates pressure distribution to the highest level.
Purchase now
The MATTRESS FLOAT t is designed with a firm base surface that minimizes the influence of what lies beneath it.
Whether placed on an existing mattress or futon, or used directly on flooring or tatami, this mattress adapts seamlessly to a wide range of sleep environments.
With sufficient rebound and support, it delivers comfortable sleep even when used on its own.
Its versatility also makes it a practical option as a futon-style mattress, convenient for temporary use or accommodating overnight guests.
A mattress sheet for easy replacement and washing
◾️Compatible mattress
BRAIN SLEEP MATTRESS PLUS FLOAT
Materials outer fabric: 100% cotton (filling: 100% polyester)
Purchase now
You can also purchase this product at our retail stores. Product availability varies by location. For more details, please check here.
Yes. Both the topper sheet and the base cover can be removed and machine-washed.
When using a washing machine, please place the covers in a laundry net and use a machine with a capacity of 8 kg or more.
Avoid using a washer-dryer or tumble drying.
You can rinse the mattress core with water in the shower.
After washing, let it air-dry in a flat, well-ventilated area, out of direct sunlight.
If odors or stains are a concern, we recommend using a mild, diluted neutral detergent.
No. Futon dryers or electric blankets cannot be used.
Also avoid placing the mattress near heaters or other heating appliances, as heat may damage the materials.
No additional sheet is required, as the topper sheet included in the set is easy to attach and remove, and can be machine-washed.
Yes. Standard box sheets designed for mattresses up to 24 cm thick can be used.
When using a box sheet, please place it over the topper sheet.
BRAIN SLEEP mattress sheets are also compatible.
BRAIN SLEEP MATTRESS FLOAT is a compact, three-fold mattress that can also be used as an overlay, making it easy to store and flexible in use.
BRAIN SLEEP MATTRESS PLUS FLOAT and BRAIN SLEEP MATTRESS PREMIUM FLOAT are designed for everyday use as regular mattresses.
All three models feature Float Technology, which supports a neutral sleeping posture with gently elevated legs.
The main difference lies in their internal construction and level of support:
BRAIN SLEEP MATTRESS FLOAT has a 3-layer structure
BRAIN SLEEP MATTRESS PLUS FLOAT has a 7-layer structure
BRAIN SLEEP MATTRESS PREMIUM FLOAT has a 9-layer structure
As the number of layers increases, pressure distribution and overall support are further enhanced.
For more details, please refer to the product comparison table.
Supports side sleeping
Pillow for correcting sleeping posture
For nights when snoring or a dry mouth is a concern
A moisturizing throat spray to keep your throat moist
Medical device
Full recovery just by wearing it to sleep
The ultimate cooling sensation lasts all night long
Summer quilt
Log in
AR
