When the sun shines on the mattress, it will naturally purge it of many germs and bacteria. This is the ideal time to wash your sheets and other bedding as necessary. A recommended washing time is weekly for sheets and pillowcases and quarterly for blankets and heavier bedding items. Wash the mattress cover monthly to quarterly, depending on how dirty it appears.
If you work late, you might be too tired to strip the bedding and pillows from the mattress just to let it air. Late in the evening, the only thing you’ll want to do with a bed is sleep on it!
Urbanist’s whose homes have an upper-story balcony which can accommodate the mattress could consider setting it up there if they want to air it outside.
If airing outside, ensure the spot you’re setting the mattress on is free of puddles or wetness, and will not be exposed to dripping water or precipitation. Find a place which is clean and dry for the mattress to stand. You should try to lean the mattress against a wall or vertical beam, either on its end or on its side. In this way, the maximum amount of area possible will be exposed to the air. If airing outside, find a place where the sun can touch the mattress as well. [4] X Research source If necessary, place a tarp between the mattress and the ground. A wet mattress will encourage mold.