This 500 Thread Count queen sheet set is made from 100% long staple cotton sateen — naturally longer cotton fibers spun into a finer, stronger yarn that produces a smoother fabric surface and a softer feel that improves with every wash. The sateen weave adds a subtle natural sheen and a soft, buttery texture built for everyday relaxation — substantial enough to drape well, refined enough to give the bed a clean, tailored appearance. The fitted sheet features deep pockets designed for queen mattresses up to 16" deep, with full-perimeter elastic that stays firmly in place through the night. The flat sheet and pillowcases complete the set with the same 100% long staple cotton sateen construction throughout. Machine wash warm and tumble dry low for easy care. Tested for pilling, fading, and shrinkage to hold up across seasons of regular use. This 500 thread count queen bed sheet set holds the Good Housekeeping Seal — independently evaluated for consistent quality. Every item bearing the OEKO-TEX STANDARD 100 label is certified as having passed safety tests for harmful substances. California Design Den was built on one belief: well-made cotton sheets should not require a luxury price tag. Crafted in a family-owned manufacturing facility in India with more than 20 years of cotton expertise — backed by a brand that stands behind what it makes.