In my search for the best silk pillowcases, the Slip Zippered Pillowcase came out on top thanks to the high-quality fabric, durability and ease of care. Read on to learn more about why I chose it as the winning pick. Sleeping on a silk pillowcase can help extend your blowout for one more day. It’s great for maintaining smooth strands and a supple complexion. My top tested pick, the Slip Zippered Pillowcase, may have a higher price point, but I consider it a worthy investment in skin and hair.