Flex Top Split King Bed Owner? Enjoy the luxury and high quality of our wrinkle free cotton blend sheets made for you head adjustable split king bed. The Split top fitted sheet has a 30-32 inches split from the top and is made with 6 corner pockets that are 16 inches deep with wings ( extra fabrics) in the middle to keep the fitted in place and will allow each side to move freely. Sheets are damask woven at 650 thread count and made form 70% cotton 30% polyester for wrinkle free, comfort and durability. Our Top split king sheet set comes complete with one flat, one fitted and two king pillowcases. Split Top (Flex) King sheet set includes: One flat sheet 110 inches wide by 102 inches long, one Flex Top King fitted sheet 78 inches by 80 inches long made with 6 corner pockets that can fit up to 16 inches deep mattresses and two king size pillowcases that are 20 inches by 40 inches long.