I'm about 290 lbs and bought a new mattress about two months ago. It's a hybrid with coils and foam, medium firmness. I rotate it every two weeks. Already I can feel slight dips where I sleep. Is this normal break-in or should I be worried? The store said it has a 10-year warranty but I don't want to deal with the hassle if it's just how foam works.
Body Impressions
My new mattress already has body impressions
Two months is pretty quick for visible impressions. What's the mattress brand and did you use a mattress protector? Some foams soften faster under heavier sleepers.
I'm around your weight and had the same thing happen with a memory foam bed. Dips showed up within three months. I ended up returning it because it kept getting worse.
Are you sure it's not just the foam softening? That's different from a permanent impression. Most warranties require a certain depth like 1.5 inches before they'll do anything.
I've heard hybrid mattresses can be tricky for heavy people because the foam layers compress a lot. Maybe check the warranty terms – some brands exclude comfort foam from coverage.
Rotating helps but if the foam is low density it'll still pack down. What's the density of the foam layers? That's usually the culprit.
I weigh 310 and I've had good luck with latex mattresses. They don't develop impressions like foam. Might be worth considering if you end up replacing.
Before you panic, measure the dip with a straight edge and ruler. If it's less than an inch, it's probably normal settling. If it's more, start a warranty claim now.
Two months is too soon for a 10-year mattress. I'd be on the phone with the retailer. They might offer an exchange.
What's the foundation you're using? If it's not supportive enough, that can cause impressions. Also, did you let it expand fully after unboxing?
I had a similar issue. Turned out my box spring was sagging. Got a solid platform and the impressions didn't get worse. Worth checking.
If it's a hybrid, the coils might be fine but the foam comfort layer could be too soft for your weight. That's a common problem. Maybe a firmer model would hold up better.
Thanks for the tips. I measured and it's about half an inch deep. The founudation is a solid platform. I'll contact the store and see what they say about warranty.
Half an inch is usually considered normal. But keep an eye on it. If it deepens, document everything.
Honestly, most warranties are prorated and not worth the hassle. You might be better off getting a topper to even it out. But that's just my two cents.