Recreates the neutral posture advocated by NASA
for ultimate relaxation

When you rest your body in space, your shoulders naturally tuck in and your legs rise. This is said to be the posture that
puts the least strain on the body. This product's unique three-dimensional structure creates a floating feeling and the perfect firmness for your shoulders, hips, and legs, encouraging you to achieve the ultimate relaxed posture free from gravity.

Ultra-breathable material controls
temperature and humidity for optimal sleep

To get a good night's sleep, it is important to maintain the temperature and humidity in your bed at an appropriate level.
More than 90% of your bed is made up of air, which prevents heat and humidity from building up during sleep, creating a comfortable sleeping environment.

It can be washed in the shower and is clean. It is also less likely to attract
dust mites or house dust.

Not only can the cover be removed and washed in the washing machine, but the mattress's inner material is also washable.

The inner material can be washed off in the shower, and after the shower, it's easy to dry it in the shade.

Urethane and coil mattresses have poor breathability and tend to accumulate moisture and heat, making them prone to the growth of dust mites and mold. Brain Sleep mattresses are breathable, making them less susceptible to the growth of dust mites and mold, and can be washed at any time if you notice any house dust or dirt, so they can be kept clean.

Excellent durability that can be used for 30 years

When it comes to mattresses that you use every day, one thing you care about is their durability.
This product has proven to be highly durable even when compressed three times the JIS standard of 80,000,000 times. It provides a stable sleeping experience even after long-term use.
*Durability may vary depending on how it is used.

MADE IN JAPAN
Carefully crafted with
reliable quality

Our technicians and craftsmen carefully and repeatedly check the quality of each and every mattress, pillow, etc.
After strict quality inspections, each item is carefully packed and delivered to the customer.

We use natural spring water with few impurities
to prevent deterioration of quality.

The spring water from Shimizu Bakuen, which is a special soft water designated as one of the "15 Famous Waters of Toyo Province" and contains very few impurities, is used in the production process. By using water with few impurities, unnecessary chemical reactions can be avoided and deterioration of quality can be prevented.

100% cotton
sheets

Made of 100% cotton fabric with excellent moisture absorption and release properties. It is breathable, smooth to the touch, and feels like you are being wrapped up in it.
It has snap buttons for easy on and off.

Product Comparison Chart