Cozy up each night with Nautica's Penguin Toss Flannel Sheet Set. These flannel sheets are brushed three times for extra softness. Each set is equipped with a fully elastic fitted sheet to help ensure it doesnt move throughout the night. Includes 1 flat sheet, 1 fitted sheet, and 2 pillowcases. (1 pillowcase for twin size). Features a 15 in. fitted sheet pocket depth (12 for twin size). Fits mattresses up to 18 in. (up to 15 for twin size).