【Product Specifications】 Size: Approximately 190 x 190cm (Fits kotatsu tables approximately 70-80cm) Heat-generating cotton: Approximately 1.5kg Material: Outer fabric: 100% polyester (220g/m high-density flannel fabric) Filling: 100% polyester (with moisture-absorbing and heat-generating wadding) Filling weight: Approximately 1.5KG. *Kotatsu table/kotatsu敷き布団 (floor mat) are not included. 【Moisture-Absorbing Heat Generation & Long-Lasting Warmth】 Uses "heat-generating cotton" that absorbs body moisture and converts it into heat. It absorbs moisture such as sweat and generates heat, transforming the humidity of the night into warmth. Even on cold mornings and chilly nights, the gentle, lasting warmth will envelop you. It keeps you warm and cozy, providing a comfortable sleep. 【High-Density Double-Sided Flannel, Achieving High Heat Retention】 Flannel material with a high weight of 220g on both sides (fabric thickness). The dense fabric creates layers of air, preventing warm air from escaping, and you'll be enveloped in fluffy, warm comfort the moment you get into the futon. This is an essential item for winter that provides excellent insulation on its own. 【Wave Quilting & Stylish Double-Sided Use】 Wave quilting is applied to prevent the filling from shifting, making it less likely to lose its shape after washing and maintaining its fluffiness. The reversible design with smooth flannel on both sides features different colors and patterns, allowing you to switch between them according to your mood or room atmosphere. You can choose from simple solid colors or cute patterned designs to suit your preference. 【Antibacterial, Odor-Resistant & Anti-Static Processing】 The fabric is treated with antibacterial, odor-resistant, and anti-mite processing, preventing unpleasant odors caused by sweat and sebum, and providing a clean feeling of use. "Anti-static processing" is applied to significantly reduce the generation of static electricity. You can use it without stress with children and pets. Enjoy a smooth texture without being bothered by static electricity, allowing you to sleep soundly until morning. 【Machine Washable at Home & Water-Repellent Treatment】 No need for troublesome dry cleaning. You can wash it at home, keeping it clean at all times. Furthermore, it is treated with water-repellent processing, so even if you spill a little liquid like coffee, the surface will repel it, reducing the risk of stains. It's very easy to use daily. 1226