This one item will make your winter sleep more comfortable
The ultimate warmth duvet
that eliminates the need for
feathers or blankets

The ultimate comforter
that's not just warm, it's the best in Brain Sleep history .


Just put on Comforter Perfect Warm EX

The temperature inside the futon remains comfortable even in temperatures as low as -17°C .


It is approximately 120% warmer than a high-quality down comforter , and achieves
the ideal sleeping temperature of 33±1°C and humidity of 50±5%.

*Thermography test for heat retention:
Actual use test in an artificial climate chamber at -17℃

The secret is the
9- layer thermos structure

The EX type has a 9-layer structure instead of an 8-layer structure.
This improves heat retention. In
addition, the material has also been improved.
Achieves amazing moisture absorption and heat generation capabilities.

What's more, our cutting-edge technology solves all
the drawbacks of luxury down comforters .

Spec Comparison

Ultimate warmth
for the best sleep.

TECHNOLOGY

01PERFECT
WARM EX

01 PERFECT WARM EX


Ultimate warmth far surpassing that of feathers

Compared to goose down duvets, which are considered to be of high quality, this duvet provides approximately 120% more heat retention.

Heat retention far surpasses that of down comforters

Compared to goose down duvets, which are considered to be of high quality, this duvet provides approximately 120% more heat retention.

POWER UP

Packed with cutting-edge technology,
this innovative 9-layer thermos structure

Innovative 9-layer thermos structure
packed with cutting-edge technology

Using insulation, heat generation, and reflective heat technology, it provides sustained heat retention just like a thermos.

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"Kapok Heat EX"
is a proprietary insulation that absorbs moisture and generates heat.

A sustainable heat generation technology that surpasses down [Kapok Heat EX]
A proprietary insulation developed using the plant fiber [Kapok] that absorbs moisture and generates heat, [Acrylate] with high heat retention, and [Acrylate] with high moisture absorption and heat generation. It is the ultimate heat generation technology that converts absorbed moisture into warm heat while being a sustainable material.

Kapok is a tree that grows indigenously in Southeast Asia, and the cotton extracted from its kernel is one-eighth the weight of regular cotton. It has been gaining attention in recent years as a sustainable, highly functional material that is not made from animal fibers.

POWER UP

The ultimate heat generating material
"Kapok Heat EX"
can heat up to +5.1℃. The ultimate heat generating power.

The Kapok Heat EX material absorbs moisture in the bedding and converts it into heat, resulting in a 5.1°C temperature rise after 7 minutes of measurement.


Aluminum protector keeps out cold air

Aluminum's inherent high thermal insulation properties and radiant heat technology prevent heat from escaping inside the futon and keep out cold air from outside.

Reflects body heat and
provides recovery insulation

We use our own proprietary fiber,
which uses rare germanium technology to reflect infrared heat back to the body.

02 PERFECT
COMFORT

02 PERFECT COMFORT


The ultimate sleeping comfort, wrapped in comfort

The blanket's uniquely developed fabric for the skin side is extremely comfortable, breathable, and has moisture-absorbing, heat-generating properties, making you feel warm from the moment you get in.

POWER UP

The smooth texture wraps you in
comfortable
warmth from the moment you step inside.

The blanket fabric has a special fiber structure that is as close as possible to cashmere, resulting in a soft and smooth texture that is just like cashmere.

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Reproduces the fiber structure of cashmere and wool

Cashmere and wool have a special fiber structure called scales that absorb and release moisture.
We developed a fiber structure similar to that scale from scratch. As a result, we were able to achieve a high level of moisture absorption and release, and a stuffy environment.
Furthermore, we were able to effectively convert that moisture into heat, providing the ultimate in warmth.

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Quilted to fit your body and
keep out the cold

Quilt design based on ergonomics.
Perfect Warm EX was developed with a focus on drapeability, taking into account the average shoulder width of the human body. As a result, it prevents cold air from entering and improves the heat retention effect.

Warm yet
comfortable without stuffiness

It has superior breathability compared to down comforters.
The entire comforter absorbs and releases moisture, creating a comfortable, stuffy sleeping environment.

03 PERFECT CLEAN

03 PERFECT CLEAN

Always clean
and compact for storage

It can be washed completely and hygienically processed. It can also be stored compactly during the off-season.

The ever-clean layer
keeps it clean at all times
(antibacterial, deodorizing, antiviral)

It has stronger antibacterial properties than antibacterial, suppresses the growth of bacteria inside the futon, and eliminates the unpleasant odor of sweat. Moreover, its antiviral properties maintain the ultimate cleanliness.

Fully washable

It can be washed at a laundromat or at home, so you don't have to worry about dirt or dust mites inside the futon.

*For single and semi-double beds, please use a washing machine with a capacity of 11 kg or more. For comforter sizes larger than this, we recommend using a large washing machine. Please check the FAQ for details.

Reduces dust generation by approximately 96%.
No need to worry about house dust.

Down comforters generate more than 20,000 dust particles from inside the comforter.Compared to that, the amount of dust generated by this product is overwhelmingly less.

It is compact and
doesn't take up much space even in the off-season.

Storage is also an important element of bedding. It can be stored compactly in the included special bag.
Storage size:
Single: Approx. W57cm x D30cm x H40cm

Further compression is possible

It can also be compressed in a bag that cannot be used with down comforters, which allows for more space-saving storage and is very convenient.
It is not recommended to use a compression bag for down comforters, as the feathers may break through the outer fabric and blow out.

SCENE

SPEC

Size

Single size: Approx. W150cm x L210cm (Approx. 3,240g)
Semi-double size: W170cm x L210cm (Approx. 3,540g)
Double size: W190cm x L210cm (Approx. 3,950g)
Queen size: W210cm x L210cm (Approx. 4,320g)

Storage size:
Single/Semi-double: Approx. W57cm x D30cm x H40cm
Double/Queen: Approx. W57cm x D35cm x H40cm

Color

Dark Gray

Material

Outer fabric
: 100% polyester
Inner fabric: Pile part 100% polyester
Base fabric part 60% polyester 40%
rayon Insulation
1st layer: Nonwoven fabric 100% polyester
2nd to 5th layers:
Plant fiber (kapok) 43% Polyester 30% Acrylic 20%
Synthetic fiber (Acrylate fiber) 7%
6th layer: Nonwoven fabric 60% Rayon 40% Polyester
7th layer: Polyester 80% Rayon 20%

No duvets or blankets
needed

Brain
Sleep Mattress Protector
Perfect Warm EX

This is a fitted sheet for mattresses.

By using it together, the heat retention of the back increases by 112%. It also effectively protects against the cold from below.
In winter, cold air has a tendency to accumulate on the floor or ground, and this cold air is felt through the bed mattress as chill. This is effective in protecting the body from that cold.

Simply place it over your mattress or futon to achieve the ultimate in warmth and a stuffy-free environment.

The same filling as the comforter, Kapok Heat EX, and
the fabric, Blanket EX, are used .

Brain Sleep Comforter Comparison Chart

MONITOR'S VOICES


" Satisfaction that I couldn't get with a down comforter "

★★★★★

It's so warm that I can easily get through this winter with just this thin futon! It's the best! The design is sophisticated with calm tones, and the feel of the fabric is irresistible! It was a satisfaction I never felt with a down comforter!

"It's so warm."

★★★★★

It's warmer than last year's. It feels really nice to the touch.
Anything that touches your body warms up quickly, so if you wrap yourself in the futon from your neck to your toes, it's super warm.

"The long, soft material is warm and gives you a sense of security, like you're being wrapped up in it from the front and back."

★★★★★

I used it right away with the mattress protector.
The long, soft material was warm and I felt like I was wrapped in it from the front and back. However, I slept so soundly that I overslept a little (lol), so next time I go to bed, I want to immerse myself in sleep without worrying about the time.

"I had a good sleep."

★★★★★

The temperature regulation inside the futon worked properly, so I was able to sleep soundly and realize that the temperature was kept constant. I had been using a feather duvet until yesterday, but I clearly feel refreshed when I wake up.

"Even if it's cold outside,
it's a little hot inside."

★★★★★

I was a little skeptical about whether this thinness and lightness would really be okay, but it wasn't a lie! Even though it was cold outside the futon, it was actually a little warm inside.

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FAQ

Can I do laundry?

Yes, it is washable. Please put it in a laundry net and wash it alone. As a guideline for washing machines, we recommend using a washing machine with a capacity of 11 kg or more for single and semi-double sizes, and for larger sizes, we recommend washing at a large coin laundry. If the shape or model of the item does not fit in the washing machine, we recommend washing it by hand or at a large coin laundry. Please note that forcing it into the washing machine may cause it to break down.

Can I use a dryer?

Do not tumble dry.

How thick is the futon?

It is about 6 to 7 cm thick. It is much thinner and more compact than a down comforter, but is designed to be thick enough to keep you warm.

Is there a front and back side to the futon?

The front side is peach skin fabric and the back side is blanket fabric. Please use the blanket fabric against your skin.

Do you have special duvet covers?

All sizes are standard size, so you can use a commercially available duvet cover. It is washable, so you can use it without a cover.

Can I use a compression storage bag?

Yes, it is possible. Please use the compression storage bag after washing and drying thoroughly. Also, when using it again, take it out of the storage bag and spread it out so that air can enter inside the futon.

Can I use a futon dryer?

Yes, you can.
However, please avoid using it on top of the Brain Sleep mattress or near the Brain Sleep pillow as it may cause the shape of the product to change.

Does it generate static electricity?

The product is anti-static. In addition, the material itself is made of hygroscopic polyester and rayon to prevent static electricity. However, static electricity can easily occur depending on the humidity of the room. If you are prone to static electricity, please take measures to humidify your bedroom and spray the product with water or a deodorizing spray.

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Brain Sleep Comforter Perfect Warm EX

Brain Sleep Comforter Perfect Warm EX

Regular price ¥42,900 ¥38,610
Regular price Sale price ¥42,900
Tax included.
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Brain Sleep Laundry Net
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Brain Sleep Pillow

同時購入でコンフォーター20%OFF

Brain Sleep Pillow
¥33,000 税込
Brain Sleep Mattress Protector Perfect Warm EX
Brain Sleep Mattress Protector Perfect Warm EX
¥14,300 税込
Brain Sleep Coin
Brain Sleep Coin
¥8,800 税込

Brain Sleep Comforter Perfect Warm EX Material +

■ Side fabric
<Outer fabric>
100% polyester
<Lining fabric>
Pile part: 100% polyester
Base fabric: 60% polyester, 40% rayon

Brain Sleep Comforter Perfect Warm EX size +

■ Product size
Single size: Approx. W150cm x L210cm (approx. 3,240g)
Semi-double size: Approx. W170cm x L210cm (approx. 3,540g)
Double size: Approx. W190cm x L210cm (approx. 3,950g)
Queen size: Approx. W210cm x L210cm (approx. 4,320g)

■Size when stored
Single/Semi-double: Approx. W57cm x D30cm x H40cm
Double/Queen: Approx. W57cm x D35cm x H40cm
View full details

Customer Reviews

Based on 60 reviews
78%
(47)
13%
(8)
3%
(2)
2%
(1)
3%
(2)
T
TOY BOX RYO

I'm not sure if this is the correct way to use it, but on cold days I sleep with the brushed side against my body, and on cooler days I sleep with the opposite side against my body.
On the contrary, I like the fact that it feels a little heavier than a down comforter.
I'm sure comfort varies from person to person, but I find it very comfortable and I'm thinking of purchasing one for my second home.

n
No name

The blanket part is very soft to the touch.
My request, which seemed a little unreasonable, was for a duvet that was thin, washable, and warm even when worn alone.
It seems to have been a perfect fit! I no longer need to use my electric blanket to warm myself up before going to sleep.
I was also asked to buy a summer futon.

Ta
Tanaka

In winter, temperatures often drop below zero at night and into the early morning in this area.
Purchased for elderly parents.
Maybe I was sleeping soundly, but I only had to go to the bathroom once during the night (sometimes it's 4 or 5 times).
It's warm but not hot, and it feels really comfortable.
My fear of winter has subsided a lot.

fruit
Micchan

The price is high, so after much deliberation, I finally decided to buy it. I really do sleep warm with just this one.
The stress of the futon is gone

tree
listen

When I cover myself with the futon, it keeps me warm from body heat, so I no longer need to turn on the heater while I sleep in the middle of winter.
Since it can be washed as is, there's no need to put a cover on it, and I wash it directly in the drum washing machine.
It produces less dust, is hassle-free, and is highly functional, eliminating all stress and offering the best value for money.

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