Mattresses in a box are hugely convenient (and comfy) but flattening and rolling a bed doesn't look like the best thing for mattress longevity. The good news is that once expanded a mattress in a box can last just as long as a traditional, unrolled mattress. So how long should a mattress in a box last?
We expect a good quality mattress to last for around six to 10 years, and the best mattresses of 2025 will keep you comfortable night after night (after nights.) The best mattresses in a box have a similar longevity, although if you keep the bed in a box for too long, you do risk damaging the interior layers.
