These Extar Heavy Duty Queen Size 60x9x90 Gusseted Poly Mattress Bags offer unparreled clarity while providing superior protection against the elements, dirt, dust moisture and debris for moving or storage. These Extra large 3 mil plastic mattress bags for queen beds are available to protect your box spring bed and Queen mattress. These large bags can be used to cover hospital bed frames and are able to be made without vent holes on a custom made basis. Mattress bags have butterfly vents on both sides 3" from the side, 10" up from the bottom and 10" between each hole.