A mattress is a major investment, and storing it improperly can lead to permanent damage such as mold, odors, sagging, or stains. Whether you’re moving, renovating, downsizing, or storing a spare bed, knowing the best way to store a mattress in a storage unit will help preserve its comfort and lifespan.
Self storage offers a safe, convenient solution—as long as the mattress is prepared and stored correctly.
Mattresses are highly susceptible to:
Moisture and humidity
Dust and dirt
Pressure that causes sagging
Poor airflow
Because mattresses absorb moisture easily, improper storage can quickly lead to mold or mildew that makes them unusable.
Before storing any mattress, it must be completely clean and dry.
Best cleaning steps include:
Vacuuming both sides to remove dust and debris
Spot-cleaning stains with mild detergent
Allowing the mattress to air dry fully
Never place a damp mattress into storage, as trapped moisture can cause mold growth.
A high-quality mattress bag is essential for protection.
Benefits include:
Blocking dust and dirt
Preventing moisture exposure
Protecting against pests
Choose a thick plastic mattress bag designed specifically for storage, not thin moving plastic.
The best position for storing a mattress is flat on its side or completely flat, depending on space.
Storage tips:
Lay the mattress flat on a pallet or platform
Avoid bending or folding the mattress
Do not stack heavy items on top
Standing a mattress on its side for long periods may cause internal shifting, especially for foam or hybrid mattresses.
Storage unit floors can experience temperature changes and condensation.
To protect your mattress:
Place it on pallets or shelving
Keep it away from exterior walls
Avoid direct contact with concrete floors
Elevation improves airflow and reduces moisture risk.
Temperature and humidity fluctuations can ruin a mattress over time.
Climate-controlled storage helps:
Prevent mold and mildew
Maintain mattress shape and structure
Protect foam and memory foam materials
For long-term storage, climate control is strongly recommended.
If you may need the mattress again soon, store it near the front of your unit and keep it upright only temporarily if space is limited. Always return it to a flat position when possible.
Labeling the mattress bag also helps with quick identification.
Not all storage facilities are ideal for mattress storage. Cleanliness, security, and climate control are key factors.
TGI Storage San Marcos offers clean, secure storage units suitable for mattress storage, including climate-controlled options to protect against humidity and temperature changes. For unit availability and sizing help, call (512) 722-7228.
Storing a dirty or damp mattress
Skipping a mattress bag
Placing heavy items on top
Leaving the mattress directly on the floor
Choosing non-climate-controlled storage for long-term use
Avoiding these mistakes can save you from costly replacements.
Storing a mattress the right way ensures it stays clean, supportive, and comfortable for future use. With proper cleaning, protective materials, and the right storage environment, your mattress can remain in excellent condition for months or even years.
If you’re looking for a reliable storage solution, TGI Storage San Marcos is here to help. Call (512) 722-7228 today to reserve a storage unit and protect your mattress with confidence.