Indulge in a world of deep sleep with the Serta Down Illusion Collection. Indulge in a world of deep sleep with lightweight fabrics so soft, and filling so fluffy, that you won’t believe it’s not down! The Serta Down Illusion Collection brings a world of marshmallow goodness to your sleep chamber, clouds turned into a cozy reality. This fluffy lightweight comforter is perfect for getting a superb summer night's sleep. It really is pure magic! 300 thread count twill 100% polyester microfiber fabric retains its softness wash after wash. Inherent moisture wicking properties keep you dry. Our down alternative comforter features advanced treatments to inhibit the growth of unpleasant scents, keeping your bed fresher, cleaner and more durable. Allergen Barrier Weaving prevents dust bugs and other household allergens. Use the 4 built-in corner loops to attach the duvet cover and secure your bed comforter in place throughout the night, providing a comfortable sleep experience. Our bed comforter is machine washable because life happens! Machine wash separately in a cold, gentle cycle. Tumble dry on low. Allow 24 - 48 hours after unpacking for comforter to expand and reach full fluffiness. A champion of comfort for all, Serta has pioneered sleep innovation for more than 90 years, bringing quality products to more than 150 countries worldwide. Every bed across the Serta portfolio is designed to provide superior comfort, including the award-winning Perfect Sleeper and iComfort collections.