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Memory foam mattresses are all-foam mattresses featuring (you guessed it!)

memory foam, and they’re well known for their exceptional pressure-relieving comfort and body-contouring support.

A tom�s Guide tester sitting on the Nectar Luxe memory foam mattress on a bed frame in the studio

Sadly, every mattress does have a lifespan, even with the best of care.

These include wear and tear, not using a proper bed base, and poor quality foams.

Once this happens to your mattress, its difficult (almost impossible) to regain its original shape.

Siena Memory Foam Mattress side lying test

5 ways to stop your memory foam mattress from sagging

1.

Don’t forget, rotating is not the same as flipping (where you flip the mattress over).

you better rotate the head of the mattress to where the foot of your bed frame is.

A man and a woman holding each end of a mattress trying to move it

This ensures the pressure point areas vary, which allows the foam to fully recover and maintain its shape.

Memory foam mattresses need solid, even support across the entire surface.

One important note: Dont be tempted to place yourmattress on the floor.

A couple sleeping happily in bed

That may meanmattress moldgrowth and dust mites.

Swap sleeping positions

We get it, it can be hard to control your body once youre asleep.

This can significantly reduce the risk of your mattress sagging.

Our tester’s head on the cover of the Nectar Premier Memory Foam Mattress

It can also help to redistribute weight more evenly across the surface.

If that’s the case, you may ultimately need toreplace your mattress.

Check your warranty

Not all sagging is normal.

The image shows Tom�s Guide�s testers unpacking the Siena Memory Foam Mattress

Obvious signs you haven’t followed these instructions can lead to the manufacturer tovoid your warranty.

Is it normal for a memory foam mattress to have body impressions?

However, these indentations should be temporary and your mattress should return to its original shape quite quickly.

A hand pressing into white surface of Nectar Classic memory foam mattress

Indentations deeper than 1" are generally considered excessive and may mean you have a problem.

A woman with long dark hair holds her back which is sore after sleeping on a mattress that�s too firm for her

Woman sleeping on a new mattress in a brightly lit room

A woman feeling the side and top of a mattress as she shops

A man sat on the edge of his memory foam bed after waking up with back pain, holding his back

A split image featuring the Nectar Classic Memory Foam Mattress on the left and the DreamCloud Luxury Hybrid on the right, leading into the DreamCloud Luxury Hybrid vs Nectar Classic showdown

The image shows a woman sitting up in bed and clutching her shoulder in pain

The Tempur-Pedic Tempur-Adapt mattress on a bed frame in a bedroom, a man and his young sun sitting on top of it, smiling. A Tom�s Guide price drop deals graphic (right)

A couple using the Scandinavian Sleep Method

Bed bugs

The Saatva Murphy Bed Mattress on a Murphy bed frame lying flat, in a bedroom

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