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No feathers or blankets needed
The ultimate warm comforter
*This page is only available in Japanese*
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Your brain sleeps fast and deeply.
It wakes up your performance tomorrow.
Brain Sleep Pillow
Your brain sleeps fast and deeply.
It wakes up your performance tomorrow.
Learn more
Sleep medicine x AI personalized
sleep
measurement
Brain Sleep Coin
Sleep medicine x AI
personalized sleep measurement
The ultimate warmth duvet
that eliminates the need for feathers or blankets
Brain Sleep Comforter
Perfect Warm EX
The ultimate warmth duvet
that eliminates the need for feathers or blankets
Can I use it alone?
We do not recommend using it alone on hard flooring. Always use it on top of a mattress or futon that you already own.
Can I wash the cover?
Yes, you can wash it in your home washing machine. Please make sure to put it in a laundry bag when washing. Do not use a dryer.
Is there a top or bottom?
Please use the quilted side as the top (sleep side). The filling has the same texture on both sides, so you can use it without worrying about the front or back.
Are there special sheets?
We do not provide special sheets.
The cover is washable, so you can sleep directly on the quilted side of the cover. You
can also use a commercially available flat sheet or fitted sheet.
50％OFF
Brainsleep Mattress Overlay
Brainsleep Mattress Overlay
Regular price
¥51,700
¥25,850
Regular price
Sale price
¥51,700
Unit price
/
per
Tax included.
45 in stock
Couldn't load pickup availability
Brain Sleep Pillow
¥33,000 税込
Brain Sleep Coin
¥8,800 税込
Brain Sleep Comforter All Seasons
¥19,800 税込
BrainSleep Mattress Overlay Usage Instructions +
・Please check the THANKS card for details.
-Due to the characteristics of the material, slight dents may occur in areas with heavy load, but this does not affect the quality.
・Be careful not to get caught on anything. If it does get caught on something, do not pull it out forcefully, but carefully cut off any loose fibers with scissors. There is no problem with the quality or texture, so you can continue to use it as is.
- Do not expose the product directly to heat from a hair dryer, heater, etc., or place it near such appliances.
-Due to the characteristics of the material, slight dents may occur in areas with heavy load, but this does not affect the quality.
・Be careful not to get caught on anything. If it does get caught on something, do not pull it out forcefully, but carefully cut off any loose fibers with scissors. There is no problem with the quality or texture, so you can continue to use it as is.
- Do not expose the product directly to heat from a hair dryer, heater, etc., or place it near such appliances.
Brainsleep Mattress Overlay Material +
Filling: 100% polyethylene
Brainsleep Mattress Overlay Size +
Product size (cm)
<single>
Approx. W98 x L198 x H4cm (Inner material only 3cm)
<Semi-double>
Approx. W120 x L198 x H4cm (Inner material only 3cm)
<double>
Approx. W140 x L198 x H4cm (Inner material only 3cm)
Queen
Approx. W160 x L198 x H4cm (Inner material only 3cm)
Product size (cm) including packaging
<single>
Approximately 36.6×36.6×102.9cm(176.1)
<Semi-double>
Approximately 36.6×36.6×102.9cm(176.1)
<double>
Approx. 36.6×36.9×144.6cm(218.1cm)
Queen
Approx. 36.6×36.9×164.6cm(238.1)
Product weight Contents (mL)
<single>
SOFT/approx. 3.1 kg
MIDIUM/approx. 3.4KG
HARD/approx. 3.6kg
SUPER HARD/approx. 3.9kg
<Semi-double>
SOFT/approx. 3.8 kg
MIDIUM/approx. 4.1KG
HARD/approx. 4.4kg
SUPER HARD/approx. 4.7kg
<double>
SOFT/approx. 4.4kg
MIDIUM/approx. 4.7KG
HARD/approx. 5.1kg
SUPER HARD/approx. 5.5kg
Queen
SOFT/approx. 5.0 kg
MIDIUM/approx. 5.4KG
HARD/approx. 5.8kg
SUPER HARD/approx. 6.3kg
Product weight including packaging
<single>
Approx. product weight + 1.3kg
<Semi-double>
Approx. product weight + 1.6kg
<double>
Approx. product weight + 1.8 kg
Queen
Approx. product weight + 2.0 kg
<single>
Approx. W98 x L198 x H4cm (Inner material only 3cm)
<Semi-double>
Approx. W120 x L198 x H4cm (Inner material only 3cm)
<double>
Approx. W140 x L198 x H4cm (Inner material only 3cm)
Queen
Approx. W160 x L198 x H4cm (Inner material only 3cm)
Product size (cm) including packaging
<single>
Approximately 36.6×36.6×102.9cm(176.1)
<Semi-double>
Approximately 36.6×36.6×102.9cm(176.1)
<double>
Approx. 36.6×36.9×144.6cm(218.1cm)
Queen
Approx. 36.6×36.9×164.6cm(238.1)
Product weight Contents (mL)
<single>
SOFT/approx. 3.1 kg
MIDIUM/approx. 3.4KG
HARD/approx. 3.6kg
SUPER HARD/approx. 3.9kg
<Semi-double>
SOFT/approx. 3.8 kg
MIDIUM/approx. 4.1KG
HARD/approx. 4.4kg
SUPER HARD/approx. 4.7kg
<double>
SOFT/approx. 4.4kg
MIDIUM/approx. 4.7KG
HARD/approx. 5.1kg
SUPER HARD/approx. 5.5kg
Queen
SOFT/approx. 5.0 kg
MIDIUM/approx. 5.4KG
HARD/approx. 5.8kg
SUPER HARD/approx. 6.3kg
Product weight including packaging
<single>
Approx. product weight + 1.3kg
<Semi-double>
Approx. product weight + 1.6kg
<double>
Approx. product weight + 1.8 kg
Queen
Approx. product weight + 2.0 kg
Brainsleep Mattress Overlay Manufacturing Country +
Japan
BrainSleep Mattress Overlay Warranty +
Warranty and instruction manual included
Warranty period: 1 year
Warranty period: 1 year
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