The movable, resilient foam in memory foam mattresses conforms to the shape of anything placed on it. Remove the object, and the foam returns to its original shape. Although you can fold memory foam mattresses, manufacturers do not recommend storing them in folded positions. Doing so may compromise the original shape of the foam and, if stored for long periods of time, may ruin the mattress.
Wrap the memory foam mattress in a plastic mattress bag. The bag will protect the memory foam from moisture, dust, mold and insects.
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Tape close all openings of the mattress bag. Examine the mattress bag for any tears or holes that may allow access to pests or moisture. Tape over any tears or holes you discover.
Transport your wrapped mattress carefully if you will be storing it at a site other than your home. Ensure you do not tear the mattress bag during transportation. Examine the bag for holes and tears once you unload the mattress and get ready to store it.
Lay the memory foam mattress flat. Do not store a memory foam mattress on its side; memory foam mattresses cannot bear their own weight in this position. Storing a memory foam mattress on its side will cause the foam to take on a hunched shape which may be permanent.