Short answer
In a dry, climate-controlled space, months to a year or more. Saatva says that's the range for a temperature-controlled unit. In a garage or unheated unit, the shorter the better, because humidity is what ruins a stored mattress. Sealy recommends a dry unit at a moderate temperature and advises against airtight wrapping or vacuum-sealing.
Book your mattress cleaning
Regular price $249, Fall 2026 promotion price $199first mattress, any size · Fall 2026 promotion
HEPA vacuuming, enzyme treatment for organic odor, dry vapor steam and UV-C. We recommend cleaning twice a year.
What makers say
- Saatva: in a temperature-controlled unit, "a few months to a year or more without any damage." Without climate control, "the less time in storage, the better" (Saatva).
- Sealy: storage for weeks or months "is not a problem for most mattresses kept flat in a climate-controlled environment." It recommends a dry unit at a moderate temperature and doesn't recommend airtight packaging or vacuum-sealing (Sealy).
Make it last
Store it flat, off the floor and covered (storage how-to), and check it on visits. When it comes out, clean it top and bottom.
Where to read next
- Why does my mattress smell after storage?
- Can you store a mattress on its side?
- Under the mattress hub
How we clean what you can't see
This section is our view. Every Sleep Sanitation visit starts with a nose-and-eyes inspection to find where the odor actually lives, then HEPA vacuuming, enzyme treatment on organic odor, low-moisture dry vapor steam from our Italian-made Vapor Clean machines, UV-C light treatment and a moisture check before we leave. Underside treatment, for the side that faces the floor or frame, is +$50–$75 per mattress. The first mattress is $199 Fall 2026 special (regularly $249), any size. We recommend cleaning every mattress twice a year. Take the 60-second mattress quiz or schedule your cleaning. Call or text (402) 512-5658, or email info@sleepsanitation.com.
Changelog
- 24 October 2026: First published. Sources accessed on this date.
Sources
Last reviewed October 24, 2026. Manufacturer specifications and care instructions change; check the current version for your exact model. This page is general information, not medical advice. How we source and check pages: editorial standards.