Can You Store a Mattress in a Storage Unit? (2026 Guide)

The simple answer

Yes, you can store a mattress in a storage unit.But whether it stays in good condition depends on how it is packed, whether the unit is climate controlled, and how long it will stay in storage.A mattress is one of the most common items renters put into storage, but it is also one of the easiest items to damage if it is stored incorrectly.

Why mattresses are tricky to store

Mattresses can absorb:• Moisture
• Dust
• Odors
• Mold
• Mildew
That means a mattress left unprotected in a hot or humid storage unit can come out in much worse condition than it went in.

How to store a mattress the right way

If you are putting a mattress in storage, do these things first:• Clean and fully dry it• Use a mattress bag or protective cover• Keep it off the floor if possible
avoid placing heavy items on top of it
• Make sure the storage unit is dry and well maintainedThese simple steps make a big difference in whether the mattress stays usable later.

Should you use climate-controlled storage for a mattress?

Sometimes, yes. Climate-controlled storage is often worth considering if:• You live in a hot or humid area•The mattress will be stored for a long time•The mattress is expensive•You want to reduce the risk of mold or moisture damageA regular storage unit can still work for a mattress, but climate control reduces the temperature and humidity swings that usually cause damage over time.

Can you store a mattress standing up?

Many renters store mattresses upright to save space, but this can be risky if the mattress is bent or unsupported for too long.In general, mattresses are safest when stored flat and fully supported.If you must store one standing up, make sure it is stable and not being forced into a bent position.

What size storage unit do you need for a mattress?

The answer depends on whether you are storing only the mattress or also storing a bed frame, dresser, boxes, and other furniture.For a mattress alone, a smaller unit may work.But if the mattress is part of a move, the total unit size usually depends on the rest of the bedroom furniture too.

What storing a mattress usually costs

The mattress itself does not change the storage price much, but it often pushes renters into needing a larger unit or climate control.That means the real cost depends on:•Unit size•Climate control•City•Facility pricing•Fees and insurance•Future rent increases

Helpful tools and guides

If you are not sure what size storage unit you need, start with the size finder.

If you want to estimate the real monthly cost of a storage unit, including fees and future price increases, use the calculator.

These related guides may also help.

If you want help comparing real storage options

If you want help comparing storage facilities based on long-term pricing behavior, hidden fees, and overall risk, visit Storage Scout.