Blue Hawk 14-in D Plastic Queen/King Encasement Mattress Cover in the Mattress Covers & Toppers department at Lowes.com
Amazon.com: DMI Waterproof Mattress Protector and Mattress Cover, Encased Zippered Fit, Full, Packaging may vary : Home & Kitchen
King Size Mattress Bag Set with Handles for Moving and Storage | U-Haul
Amazon.com: Plastic Mattress Protector King, Fitted Sheet Style, Waterproof Vinyl Mattress Cover, Heavy Duty Breathable - Bed Wetting and Spill Protection for Mattress by Blissford : Home & Kitchen