Charleston Bay Sleep Tite 300 Thread Count Stretch Fit 100-Percent Cotton Luxury 4-Piece Sheet Set, California King, Blue Cotton Unique Fabric stretches to fit even the deepest mattress from 7"-to-20" thick; Perfect for pillow top, air beds and mattresses with toppers and pads One piece seamless construction has an incredible 15 parallel lines of high-quality elastic built into the head and foot for a secure fit every time Constructed from fine-woven 300 thread-count 100% long staple cotton that has been mercerized for beautiful sheen and extreme softness and durability Cal King sheet set includes an oversized 108-by-104" flat sheet for full coverage; two 20-by-40" pillowcases and a 72-by-84" stretch fit fitted sheet Both the flat sheet and the pillowcase come with a 4-inch turn back hem treatment for a fully finished look; Easy Care conveniently Machine wash/dry Sage-colored, queen-sized sheet set with 1 fitted sheet, 1 flat sheet, and 2 standard pillowcases Soft and silky 100-percent cotton fabric with lustrous sateen finish Fitted sheet's extra-deep pockets are designed to fit premium mattresses Double-needle hems on pillowcases and flat sheet for extra durability 300 thread count; pre-shrunk for superior fit; machine-washable and dryer-safe