In addition to leaving your mattress on a finished surface, use a barrier, such as a piece of cardboard, a blanket, or a foam mat, between your mattress and the ground. This helps preserve the quality of your mattress and protects it from premature wear and tear.
Place a layer of plywood, foam, or cardboard between the floor and mattress. This way, you can keep your mattress from touching the floor directly while still keeping it low to the ground.
Most mattresses can rest on a slatted foundation—including memory or latex foam, hybrid, or innerspring beds. If you have an innerspring mattress and prefer to use a box spring for height, just be sure the foundation can support the weight of the box spring and the mattress.
Increasing air circulation in the room and running a dehumidifier will help prevent moisture from accumulating under the mattress, according to Dutch researcher Evert Hasselaar in his 2006 “Health Performance of Housing.”
Mold is also a potential issue: If you live somewhere moist or humid, putting your mattress directly on the floor may mean that moisture accumulates at the bottom of the mattress, which could lead to mold growth. This has the potential to provoke allergies and other health issues.