BRAIN SLEEP MATTRESS PREMIUM FLOAT
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Relax. Release.The ultimate mattress Passed 30-Year Durability Test PRESSURE DISTRIBUTION COMFORTABLE IMPROVE BLOOD FLOW TURN OVER SUPPORT BREATHABLE BED TEMPRATURE CONTROL MITE AND MOLD PREVENTION WASHABLE SUSTAINABLE MATERIALS Sleep is not just about time. It’s about quality The only mattress 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.Because sleep products are part of our everyday lives, why not reconsider sleep from the perspective of quality? 114% recovery from fatigue — even with the same sleep duration When comparing fatigue recovery after seven hours of sleep on the BRAIN SLEEP mattress versus a typical functional mattress, results showed that the BRAIN SLEEP mattress delivered a 14% higher fatigue recovery rate. 114% recovery from fatigue — even with the same sleep duration When comparing fatigue recovery after seven hours of sleep on the BRAIN SLEEP mattress versus a typical functional mattress, results showed that the BRAIN SLEEP mattress delivered a 14% higher fatigue recovery rate. Ultimate relaxation posture× Advanced pressure dispersion Powered by zero-gravity technology The ultimate relaxed posture Designed to recreate the posture identified by NASA as placing minimal strain on the body Designed for the ultimate relaxed posture FLOATTECHNOLOGY Patent No. 7727279 A proprietary float structure that supports the legs, waist, and shoulders This structure enables a neutral sleeping posture and effective body pressure distribution, helping reduce physical strain during sleep. Advanced pressure distribution A nine-layer wire-wave structure firmly supports the body and facilitates effortless turning during sleep, delivering a premium sleep experience. In addition, Lowering core body temperaturefor deeper “golden 90 minutes” 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. Drawbacks of a typical mattress Difficult falling asleep due to heat buildup in the mattress Excessive sinking can place strain on the body Too soft / too firm Restricted turning during sleep Difficult to care for (not washable, moisture tends to build up) Dust mites and mold can develop Common issues caused by an ill-fitting mattress Waking up still feeling tired, even after a full night’s sleep Feeling fatigued from the moment the day begins An uncomfortably warm and humid sleep environment Lower back pain and shoulder stiffness Waking up during the night It is said that sleep is said to makes up one-third of our lives.Why not take a fresh look at the mattress — one of the most important elements of quality sleep? One mattressFor waking up refreshed. Flagship model TECHNOLOGY 01Zero-gravity technologydesigned for ideal sleep posture 02Exceptional breathabilityfor cool, comfortable sleep 03Proven durability tested for 30 years & resists dirt and stays clean 01ZERO GRAVITY TECHNOLOGY Zero-gravity technologydesigned to create ideal sleep posture 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". Recreating the neutral body posture proposed by NASAGuiding the body toward ultimate relaxation 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. Elevating the legs enhances circulation and supports recovery from fatigue 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. View detailed evidence Blood circulation increases by approximately 150% 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. A new sensation of resilienceReduces physical strain through a nine-layer hybrid rebound structure 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 nine-layer construction absorbs gravitational force and converts it into rebound energy—firmly supporting the body while helping maintain proper sleep posture. View detailed evidence Provides stable support with minimal sink depth The maximum difference in sink depth compared to a urethane mattress is up to 1.4 cm. By reducing excessive sinkage, the mattress supports the body without strain and helps maintain proper sleeping posture. Zoned support tailored to different body areas helps maintain an ideal sleeping 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. Ultra pressure dispersion supports natural turning, helping the body rest with less energy 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. View detailed evidence Energy expenditure during turning reduced by approximately 15% Ultra pressure dispersion, combined with a nine-layer structure, supports natural turning by providing multidirectional support to the body. 02TEMPERATURE CONTROL Exceptional breathability keeps heat from building up, for lasting comfort A proprietary three-dimensional fiber structure delivers exceptional breathability. Every turn during sleep releases built-up heat and humidity. Controls temperature and humidity for optimal sleep through super-breathable materials 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. View detailed evidence Lower skin surface temperature Compared with other materials, the BRAIN SLEEP Mattress clearly maintains a lower skin surface temperature. High level of heat dissipation prevents heat from accumulating The BRAIN SLEEP mattress features a highly breathable material that retains significantly less heat than other materials, inducing high-quality sleep throughout the night. 03CLEAN FORLONG TIME& DURABILITY Stays clean, built to Last 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. Washable with water for lasting cleanliness Helps reduce dust mites and house dust 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. 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 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. Exceptional durability equivalent to 30 years of use Everyday use makes durability a key concern when choosing a mattress.This product has demonstrated high durability through compression testing at three times the JIS standard of 80,000 cycles.Even with long-term use, it continues to deliver stable comfort.*Durability may vary depending on usage conditions. MADE IN JAPAN Meticulous craftsmanship, trusted quality 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. 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. SCENES This photo shows the double size. Other sizes are also available. SPECSpecifications Size Single: approx. W100 × L196 × H20 cm (Leg section: 24 cm)Semi-Double: approx. W120 × L196 × H20 cm (Leg section: 24 cm)Double: approx. W140 × L196 × H20 cm (Leg section: 24 cm)Queen: approx. W160 × L196 × H20 cm (Leg section: 24 cm) Shoulder rest gradation Graduated firmness at the shoulder area Color Material Topper sheet: outer fabric 100% cotton (filling: 80% polyester, 20% rayon)Base cover: 100% polyesterMattress: 100% polyethylene A 100% recyclable, sustainable material The mattress core is made from 100% recyclable materials, designed with consideration for the environment. Sheets Exclusively designed 100% cotton sheet Crafted from 100% cotton fabric with excellent moisture absorption and release.Highly breathable, it offers a smooth, gentle touch that softly envelops the body for a comfortable night’s sleep.Features a side zipper for easy removal and care. MATTRESS LINE UPChoose according to your sleep needs Flagship model PREMIUM FLOAT A premium model offering the highest level of sleep comfort, with a 20 / 24 cm profile The flagship of the Float series, featuring a nine-layer structure that maintains an ultimate relaxation posture and delivers durability designed to last up to 30 years. A bed mattress that further reduces strain on the body. PLUS FLOAT A standard model that provides firm support with a thickness of 15 / 19 cm With a 7-layer construction, the mattress firmly supports the body while promoting a relaxed sleeping posture and smooth turning during sleep, helping maintain comfortable rest throughout the night. Designed for long-term use of up to approximately 10 years, this model is recommended for those using the Float series for the first time. Learn more FLOAT A compact model with a 5 / 9 cm profile, designed to achieve ultimate relaxation. The three-layer structure firmly supports the body while promoting fatigue recovery.Resistant to the influence of bedding or floor surfaces underneath, it can be placed on an existing mattress, futon, flooring, or tatami—adapting easily to a wide range of sleep environments.Its foldable design allows for compact storage when not in use. Learn more Comparison table Have questions about the product? The development team will answer your inquiries directly. Please feel contact us. When submitting an inquiry, please select “[BRAIN SLEEP] Inquiry for the Development Team” as the inquiry category.Contact us > RELATED PRODUCTS BRAIN SLEEP MATTRESS FLOAT Use it on your existing bedding, or place it directly on the floor The MATTRESS FLOAT 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. Purchase now Topper Sheet White / Navy Topper Sheet White / Navy A mattress sheet for easy replacement and washing ◾️Compatible mattress BRAIN SLEEP MATTRESS PREMIUM FLOAT *This sheet is not compatible with the “BRAIN SLEEP Mattress The Premium” sold prior to 2022, as the shape and closure specifications (zipper type) differ. The topper sheet can be used when purchased together with the base cover. Available for purchase [here]. Materials outer fabric: 100% cotton (filling: 80% polyester, 20% rayon) Learn more 洗い替え用に便利なマットレスシーツです。 A mattress sheet for easy replacement and washing ◾️Compatible mattress BRAIN SLEEP MATTRESS PREMIUM FLOAT *This sheet is not compatible with the “BRAIN SLEEP Mattress The Premium” sold prior to 2022, as the shape and closure specifications (zipper type) differ. The topper sheet can be used when purchased together with the base cover. Available for purchase [here]. Materials outer fabric: 100% cotton (filling: 80% polyester, 20% rayon) Purchase now 6-Layer Base, Topper sheet & Base cover set White / Navy For those who own the Float Mattress This set is designed for customers who already own the Float Mattress, enhancing it into a more premium setup.*this set cannot be used on its own without the Float Mattress.MaterialsTopper sheet: 100% Cotton (Filling: 80% Polyester, 20% rayon)Base cover: 100% Polyester6-Layered Base: 100% Polyethylene Learn more This set is designed for customers who already own the Float Mattress, enhancing it into a more premium setup.*this set cannot be used on its own without the Float Mattress.MaterialsTopper sheet: 100% Cotton (Filling: 100% Polyester)Base cover: 100% Polyester6-Layered Base: 100% Polyethylene Purchase now FAQFrequently asked questions What are the delivery package sizes? The product is delivered in three separate packages. ▼Single Size ①Approx. 103 × 69.5 × 48 cm ②Approx. 104 × 69 × 23 cm ③Approx. 62 × 42 × 31 cm ▼Semi-Double Size ①Approx. 123 × 69.5 × 48 cm ②Approx. 124 × 69 × 23 cm ③Approx. 62 × 42 × 31 cm ▼Double Size ①Approx. 143 × 69.5 × 48 cm ②Approx. 144 × 69 × 23 cm ③Approx. 62 × 42 × 31 cm ▼Queen Size ①Approx. 164 × 69.5 × 48 cm ②Approx. 164 × 69 × 23 cm ③Approx. 62 × 42 × 31 cm Can the covers be machine-washed? Yes. The topper sheet and base cover can be removed and machine-washed.When using a washing machine, please place them in a laundry net and use a machine with a capacity of 8 kg or more.Do not use a tumble dryer. How should I care for the mattress core? 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. Can I use a futon dryer or an electric blanket on the mattress? 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. Do I need to place a sheet on the mattress? No additional sheet is required, as the topper sheet included in the set is easy to attach and remove, and can be machine-washed. Can I use commercially available sheets? Yes.We recommend the mattress sheets (box-sheet type) available from the BRAIN SLEEP store, but standard box sheets sold on the market can also be used.When using a box sheet, please place it over the topper sheet. I already own the Float Mattress—what’s the difference? For details, please refer to the comparison chart.By adding an extra layer to your current Float Mattress, you can upgrade it to the Premium model.The upgrade set is available for purchase here. .sec_development{background: #EEECDD;text-align: center;padding: 50px 10px;margin:50px 0 0 0;} .sec_development p{text-align: center;font-weight: bold;font-size: 25px;line-height: 200%;} .txt_red{color: #9C2335;} .sec_development a{color: #FFFF;background: #9C2335;padding: 10px 50px;border-radius: 30px;margin-top: 30px;font-size: 20px;display: inline-block;} .annotation{font-size: 12px;} .relatedProducts{margin-top:0px;} @media screen and (max-width:749px) { .sec_development p{font-size: 20px;} } .technology__item { font-weight: 400; } .technology__item__desc__text__content__title, .technology__item__desc__text__content__desc { letter-spacing: 0; } .spec__item, .size__txt, .spec__item__desc__text__content__desc, .technology__item__desc__text__content__title { font-weight: 400; }
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