Supima Cotton 1000 Thread Count Extra Deep Fitted Sheet Set by Tribeca Living Queen White 1000 Thread Count Extra Deep Pocket Sheet Set. Woven of 100% Supima cotton, with long-staple pima fibers for extraordinarily soft, smooth and durable bedding. Sateen weave which gives soft, lustrous and smooth feel to the touch. Fitted sheets deep pocket to fit mattresses 9 inch to 25 inch deep and elasticized all the way round to give a snug fit. Available in Full, Queen, King and Cal. King sizes. Imported. Machine Washable.