With a soft yet durable 200 thread count and lustrous mercerized linen, the Registry Signature 200 Thread Count plain weave fitted sheets make the sleep of guests’ dreams a reality. The twin sized sheet measures 39 x 80″ x 9″, with a 9″ depth and elastic end to ensure compatibility with existing mattresses. The 60% cotton 40% polyester fabric blend makes for easy machine washing. This plain weave sheet is Oeko-Tex Certified, meaning they’re free from harmful irritants and chemicals.”