Transform your space with the ultra-soft Member’s Mark 450-thread-count sheets. Featuring patented HygroCotton™, this temperature-regulating technology ensures you’ll stay warm when it’s cool, and cool when it’s warm so you can sleep comfortably. Built-in odor and freshness protection Super soft, wrinkle-resistant cotton is treated with Intellifresh™ advanced odor control and freshness technology to inhibit odor-causing bacteria. Flex-Fit® stretch keeps your sheets from shifting These sheets also feature patented Flexi-Fit® stretch technology that ensures the fitted sheet stays in place on your mattress. The fully elasticized sheet is constructed with a deep pocket designed to fit mattresses up to 16"-18" deep. Super-soft HygroCotton™ with advanced freshness Our Member’s Mark sheets are made of 100% HygroCotton™, giving these sheets a gorgeous hand-feel while a 450-thread-count keeps the sheets comfortable and durable over time and washes. Unlike conventional sheets, these are fast-drying, which helps you save money, time and energy while remaining strong with low shrinkage. What sizes are these sheets available in? The Twin sheet set includes three pieces: a fitted sheet, a flat sheet and one pillowcase. All the other sizes (Full, Queen, King, California King) include five pieces: fitted sheet, flat sheet and two pillowcases. See the list below under Specifications for dimensions. What is HygroCotton™? HygroCotton™ is spun from 100% cotton hollow-core yarn, a revolutionary new process creates fabric that is more breathable, moisture-wicking and fast drying. This patented spinning technology creates a fabric that gets softer over time.