Brain Sleep Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Atsushi Hirota; hereinafter "Brain Sleep") will launch the "Brain Sleep Comforter Perfect Warm Dual" (hereinafter "Comforter Dual"), a dual-structured duvet that uses "Carbonano Down," an innovative material that achieves comfortable sleep for long periods in the severe depths of winter and during spring and autumn with their drastic temperature changes. The duvet forms an "air pocket" by layering a comforter and an inner blanket. It will be available for purchase on the Brain Sleep official website from 10:00 AM on Wednesday, December 18th.The "Comforter Dual" is a flexible duvet that can promote quality sleep not only in the depths of winter but also in spring and autumn with their drastic temperature changes, as it can maintain a comfortable bedding temperature suitable for the season by changing its combination. A Comfortable Sleep Environment in Any Conditions According to the Japan Meteorological Agency, from mid-December, Japan is expected to be more susceptible to cold air, with severe cold nationwide*1. In winter, the quality of sleep tends to decline due to the cold, but controlling "humidity" in addition to "temperature" is also important for comfortable sleep.The "Carbonano Down" adopted in the "Comforter Dual" is an innovative filling material with eight functions, including an astonishing moisture-absorbing and heat-generating property, which is the first of its kind in the industry. It achieves warmth exceeding that of down, and its moisture-absorbing and releasing function eliminates uncomfortable stuffiness during sleep. Furthermore, the "air pocket" formed by the dual structure of the comforter and inner blanket traps "air," which has high insulation properties, maintaining comfortable warmth until morning. This is a 3-way duvet that allows for comfortable use: in the depths of winter, the comforter and inner blanket are used together as a double layer; in spring and autumn, with their drastic temperature changes, either the comforter or the inner blanket is used alone depending on the climate and temperature.We have received positive feedback from customers who have already used the product after purchasing it on Makuake, such as "Even on mornings when the room temperature was around 10℃, it wasn't cold at all, and the inner fur was comfortable to the touch, allowing for a good night's sleep!" and "It's light, warm, and easy to wash, making it the most convenient duvet I've ever used!" ※1 Japan Meteorological Agency "Explanation of the One-Month Forecast (issued on December 12, 2024)" Features of "Brain Sleep Comforter Perfect Warm Dual" 1. Uniquely developed granular filling that achieves ultimate warmth "Carbonano Down" boasts an astounding moisture-absorbing and heat-generating power exceeding 290% of conventional granular fillings.Among the many functions of Carbonano Down, its moisture-absorbing and heat-generating power is particularly impressive, with a maximum heat generation of over 3.8°C. Experiments showed a temperature increase from 18.2°C to 33.5°C. Warm yet not stuffy, offering a comfortable sleeping experienceThe entire duvet absorbs and releases moisture, creating a comfortable sleep environment that is not stuffy compared to conventional fillings. Exceptional comfort surpassing down comforters with down-like granular fillingThe down-ball-like granular filling, composed of different sized particles, intertwines like down, allowing it to trap warm heat. Furthermore, since it does not use any hard materials like the feathers sometimes found in down comforter fillings, it simultaneously achieves a softness that surpasses down comforters. Uniquely developed material "Kapok Heat EX" that absorbs moisture and generates heatWe use a uniquely developed plant fiber, [Kapok], which absorbs moisture and generates heat, along with highly insulating [Acrylic] and highly moisture-absorbing and heat-generating [Acrylate] as the filling. This is the ultimate heat generation technology that converts absorbed moisture into warm heat, while being a sustainable material. Ultimate warmth achieved with a double-layered air pocketDuring the severe winter months, use both layers combined. A large air pocket (air layer) created between the comforter and inner blanket traps "air," which has high insulation properties, maintaining comfortable warmth until morning. 2. A 3-WAY dual structure that can be used for a long time with temperature control. No need for multiple futons anymoreTypically, duvets can only be used for a limited season throughout the year, requiring multiple duvets and blankets. However, with the "Comforter Dual," you can use it as a double layer or as a single layer, eliminating the need for extra duvets.By changing the combination according to the room temperature, you can create a comfortable bedding environment at any time: using both layers for deep winter when the room temperature is around 5℃ to 15℃, just the comforter for autumn when it's around 15℃ to 20℃, and just the inner blanket for spring when it's around 20℃ to 23℃. 3. Machine washable for easy care and ultimate cleanliness. Machine washable, with a 97% reduction in lint generationSince the duvet and blanket can be separated, each can be machine washed at home.[Washing machine compatibility guide] *Please check your washing machine's instruction manual as it may vary depending on the model and shape of the washing machine.・Single/Semi-double size: Washing machine with a capacity of 7 kg or more・Double/Queen size: Washing machine with a capacity of 9 kg or more Minimal lint generation from futon, ensuring safe daily useLint generation is only 3% of that from down duvets, allowing for safe daily use. "Brain Sleep Comforter Perfect Warm Dual" Product Details Product Name: Brain Sleep Comforter Perfect Warm DualSizes: Single W150×L210cm (approx. 3,450g), Semi-double W170×L210cm (approx. 3,620g), Double W190×L210cm (approx. 4,040g), Queen W210×L210cm (approx. 4,470g) Color: Stone GrayMaterial: [Comforter] ・Outer Fabric: 100% Polyester ・Insulation: 1st layer 100% Polypropylene 2nd and 3rd layers 85% Polyester, 15% Synthetic fiber (acrylate-based) [Inner Blanket] ・Outer Fabric: Front fabric: 100% Polyester Back fabric: Pile part 100% Polyester, Base fabric 55% Polyester, 45% Rayon ・Insulation: 43% Plant fiber (Kapok), 30% Polyester, 20% Acrylic, 7% Synthetic fiber (acrylate-based fiber)