Ox Plastics Bed Storage Bag, Moving Supplies, Bed Bug Mattress Cover 2 Mil (1, Twin/Full) MATTRESS BAG: Use this mattress bag to protect your mattress from getting dirtied or wet. MOVING SUPPLIES MATTRESS BAG: These mattress bags are perfect for moving to keep dirt and debris from touching your mattress. BED BAG: These bed bags are 2 mil strong. BED BUGS MATTRESS COVER: Protect your mattress from bed bugs. UHAUL MATTRESS BAG: Our mattress bags come in two sizes, twin/full and queen/king.