How often should you replace a memory foam mattress? 5 key signs it's time for a new bed

Tester Becky George sits on the foot of the Nectar Premier Memory Foam Mattress to test its sturdiness and support.

As the weather cools down, Black Friday mattress deals are heating up. Now is the perfect time to check whether your memory foam bed is still pulling its weight.

While the best memory foam mattresses often outlive their hybrid and innerspring counterparts thanks to their simple designs made with fewer materials that can wear down, cheaper foams can start sagging or lose support much sooner.