【Extra Thick, Premium Warmth - Uses Teijin TEIJIN Mighty Top Cotton】Shikipad (Sleeping Pad) - 5-Layer Construction, Includes Aluminum Sheet, Moisture-Absorbing & Heat-Generating, Heat-Retaining, Winter, Contact Warmth, Insulation, Warmth Measures, Microfiber, Flannel, Antibacterial, Odor-Resistant, Anti-Dust Mite, Washable 【Carefully Crafted 5-Layer Construction】① Top Layer of Shikipad: "Contact Warmth Q-MAX 0.08" 8mm Long Pile Microfiber ② "Moisture-Absorbing & Heat-Generating, Heat-Retaining" Acrylate Cotton + TEIJIN Antibacterial, Odor-Resistant Cotton ③ "Heat-Retaining & Insulation" Heat-Retaining Cotton ④ "Cold Air Blocking" Aluminum Sheet ⑤ "Refreshing & Durable" Backing: Recycled Peach. During sleep, heat generation, heat retention, and insulation are repeated, allowing you to maintain warmth even in cold winters. 【Contact Warmth & Fluffy, Smooth Texture】Q-max is a value that quantifies the transfer of heat from human skin to an object; the smaller the value, the warmer it feels. Our shikipad fabric has a Q-MAX of 0.095, providing instant warmth upon contact. The shikipad has 8mm long threads and excellent density, making it fluffy, soft, and able to retain a lot of warm air. 【Acrylate-Infused Moisture-Absorbing & Heat-Generating Cotton + TEIJIN Antibacterial, Odor-Resistant, Anti-Dust Mite Filling】Absorbs moisture such as sweat from the body, generates heat, and warms the body. Uses "Teijin Mighty Top II ECO" antibacterial, odor-resistant, and anti-dust mite filling, which inhibits bacterial growth and provides odor-resistant and anti-dust mite effects. Our shikipads can be used with peace of mind even by small children. 【Heat-Retaining Cotton & Insulation】Uses heat-retaining cotton to lock in warm air and retain its heat, gently enveloping the body in natural warmth. 【Includes Aluminum Sheet & Insulation】The aluminum sheet in the shikipad is a newly developed material that prevents the escape of retained heat and insulates against cold air from outside. 【Easy to Attach/Detach & Washable】The four corners of the back have "Reinforced Dobby Elastic Bands," so it can be securely fixed to futons or mattresses and won't slip even when you turn over. Easy to remove and attach. You can use it comfortably. We recommend using a laundry net when washing in the washing machine. 【Energy-Saving & Economical】If you use the 5-layer construction blanket and pillow pad made of the same material as the shikipad, you can expect a higher heat retention effect. Since it does not use electricity, it does not cost electricity bills, allowing you to sleep warmly, save energy, be kind to the earth, and be kind to your wallet.