Zinus Machine Washable Memory Foam Quilted with Super Soft Microfiber Mattress Topper, Twin Innovative Rapid Dry Memory Foam is Machine Washable for a fresher, clean mattress Quilted MicroPlush Fiber and Memory Foam Comfort Fitted sheet style fits mattresses up to 14 inches thick and offers 5 sided mattress protection Only the Highest Quality Memory Foam  Memory Foam is CertiPUR-US Certified for durability, performance, and content Worry Free 5 year limited warranty