Extra Thick, Premium Warmth, Multi-Layer Construction, Fitted Sheet with Aluminum Sheet Moisture-Absorbing Heat Generation & Heat Retention, Winter Microfiber Flannel ★ Extra Thick, Premium Warmth - Overcome the Cold Winter with Multi-Layer Construction! ★ Warm and Fluffy Sleep Comfort with Moisture-Absorbing Heat-Generating Wadding♪ ★ Great for replacements or guest use ◎ 【Condition】Brand New, Unused ▼Product Details▼ 【Contact Thermal Sensation & 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 fitted sheet fabric has a Q-MAX of 0.095, providing instant warmth and coziness upon contact. The fitted sheet 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 Wadding + TEIJIN Antibacterial, Odor-Resistant, and Anti-Mite Wadding】 Absorbs moisture such as sweat from the body, generates heat, and warms the body. Utilizing "Teijin Mighty Top II ECO" antibacterial, odor-resistant, and anti-mite wadding, it suppresses bacterial growth and provides odor-resistant and anti-mite effects. Our fitted sheets can be used with peace of mind even by small children. 【Heat Retention Wadding & Insulation】 Using heat retention wadding, it locks in warm air, retains the heat, and gently envelops the body with natural warmth. 【With Aluminum Sheet & Insulation】 The aluminum sheet in the fitted sheet is a newly developed material that prevents the retained heat from escaping and insulates against cold air from the outside. 【Easy to Attach/Detach & Washable】 With "Reinforced Dobby Elastic Bands" on the four corners of the back, it can be securely fixed to futon mattresses or mattresses and is less likely to slip even when you turn over in your sleep. Easy to remove & attach. You can use it comfortably. We recommend using a laundry net when washing in the washing machine. -------------------------------- No smokers No pets Instant purchase welcome ⭕️ If you have any questions or concerns, Please feel free to comment ♪