The Solid Color collection made of 100% super soft polyester using 90gsm microfiber gives your guests the chance to experience a great night's sleep in comfy, casual bedding. These sheets are durable, machine wash/dry, and wrinkle-resistant. Fits the mattress up to 14" deep. This fitted sheet case pack includes 12 fitted sheets. Matching flat sheet and pillowcase case packs are sold separately and can be found by searching on their Wayfair #. Flat Sheets Wayfair# SPHY1083. Pillowcase Wayfair# ANEW5417.