Connect Collection T180 Premium Quality Bed Sheets & Pillowcases. Try the best-selling, long-lasting Premium Quality sheets and pillowcases, which are made of a sturdy 55% cotton and 45% polyester blend for both comfort and longevity. These are hopsital grade sheets with a machine washable and dryable construction, a 180 thread count per square inch for a polished appearance, these bed sheets for hospital beds are the best option for long-lasting quality and ease.