The Sleep Philosophy® down alternative comforter collection features 3M™ Thinsulate™ Featherless Insulation-600 Fill Power, a kinder alternative to natural down. This revolutionary, loose fill-down alternative mimics or surpasses the performance of natural down in Fill Power, loft and overall performance. Made of durable, lightweight polyester fibers, 3M™ Thinsulate™ Featherless Insulation provides warmth without a single feather.The Sleep Philosophy® down alternative comforter collection features a silky-soft 300 thread count, 100% cotton sateen cover. The comforters have sewn through box quilting so that the down-alternative fill doesn’t bunch or shift. Four corner loops on the comforter can be tied to help secure it within a duvet cover. The filling is also hypoallergenic so you’ll have a comfortable "sneeze-free" night’s sleep. It’s also machine washable for easy care. This comforter is also OEKO-TEX certified, meaning it does not contain any harmful substances or chemicals, ensuring quality comfort and wellness. Items in the set may come in a rolled or compressed packaging, which will need to be fluffed up or steam ironed before use to remove wrinkles.A great night's sleep never goes out of style. That’s our Sleep Philosophy.