The Sleep Philosophy® down alternative comforter collection features 3M™ Thinsulate™ Featherless Insulation-600 Fill Power. 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 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. They're also hypoallergenic so you'll have a comfortable " sneeze-free" night's sleep. It's also machine washable for easy care. Twin Size Includes: 1 Comforter: 63 in W x 68 in L Full/Queen Size Includes: 1 Comforter: 90 in W x 90 in L King Size Includes: 1 Comforter: 104 in W x 90 in L Silky soft 300-thread count Classic box quilting Lightweight for all season use Patented 3M™ Thinsulate™ Featherless Insulation-600 Fill Power Material & Care Cotton sateen Cotton Machine washable