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Best Memory Foam Mattresses

Last updated Researched from published specifications and owner reviews, not tested in person

Quick answer

The EGOHOME Queen Mattress 12 Inch is our top pick among memory foam mattresses at $249.99, a 12 inch queen build with a medium firm feel as the maker describes it.

The EGOHOME Queen Mattress 12 Inch is our top pick among memory foam mattresses at $249.99, a 12 inch queen build with a medium firm feel as the maker describes it. Memory foam mattresses use viscoelastic foam layers that slowly compress under body heat and weight, then recover their shape once the pressure lifts, which is why they are usually described as slow-moving and contouring rather than bouncy. Below are three tiers of picks by budget and size, a side-by-side spec table, and the questions people ask most before buying one.

What actually makes a mattress "memory foam"?

A memory foam mattress is built around one or more layers of viscoelastic polyurethane foam instead of, or in addition to, a coil support system. The foam softens where it is warmed and pressed, which spreads out contact instead of concentrating it at the hips and shoulders the way a firmer surface can. Every mattress in this roundup lists its own thickness and firmness on the product listing rather than a lab-tested number, so the specifics below come straight from what each manufacturer publishes, plus the patterns that show up across owner reviews.

Thickness is the number worth checking first. In this catalog it runs from an 8 inch EGOHOME 8 Inch Twin Mattress up to 14 inch queen and king builds like the Novilla Bliss Mattress Queen Size. A thinner mattress usually costs less and works well as a guest room or child's room upgrade; a thicker one gives more foam to sink into before you reach the base underneath.

Construction quality also shows up in details a listing bothers to publish. A few picks below, including the EGOHOME Full Size Memory Foam Mattress and EGOHOME 8 Inch Twin Mattress, carry a CertiPUR-US certification on their foam, meaning an independent program has tested it for things like emissions rather than relying on the manufacturer's own word alone. A manufacturer-described cooling feature, usually a gel infusion or an open-cell foam structure, shows up on several thicker picks as well, and we only mention it where the product's own listing states it.

Beginner Lowest total cost to a setup that works, and forgiving to live with.

Beginner picks

The lowest total cost to a queen-size upgrade, both under $230, without dropping below a 10 inch profile.

Intermediate The buy-once pick: the best value per dollar for most bedrooms.

Intermediate picks

More foam, a cooling feature, or a bigger size, without moving into Expert-tier prices. Both picks here sit in the $250 to $300 range.

Expert The ceiling: build quality, capacity and features, for people who want them.

Expert picks

The thickest, most feature-carrying memory foam builds in this catalog.

Who should not buy this tier: Shoppers on a strict budget under $200, or anyone who specifically wants a firmer, less contouring feel than memory foam gives; a hybrid mattress in our SayTale Queen Mattress 12 Inch Hybrid Queen Size Mattress in a Box Medium Firm-style lineup is usually a closer fit for that preference.

How do these memory foam picks compare on specs?

Spec EGOHOME Queen Mattress 12 Inch Zinus Memory Foam 10 Inch Green Tea Mattress Novilla Bliss Mattress Queen Size
Price $249.99$229.99$339.99
Size QueenQueenQueen
Thickness 12 in10 in14 in
Construction Memory foamMemory foamMemory foam
Feel Medium firm--
Cooling --Manufacturer describes a cooling feature

A dash means the manufacturer does not publish that figure for this product. We do not estimate it.

What sizes come in memory foam, and how big is each one?

The picks above span most standard US mattress sizes. Here is how those sizes compare, using the published industry-standard dimensions rather than any single manufacturer's own figures.

Standard mattress dimensions by size
SizeWidthLength
Twin38 in75 in
Twin XL38 in80 in
Full54 in75 in
Queen60 in80 in
King76 in80 in
California King72 in84 in

Industry standard

These are standard published dimensions, the same across manufacturers.

How we chose

We did not test any of these mattresses in person. Each pick is researched from the manufacturer's own published specifications, such as thickness, size and stated firmness, the price at the time of research, and the recurring themes in verified owner reviews. Where a maker does not publish a figure, such as a foam density or a certification, we leave it out rather than estimate it. Picks are placed in the Beginner, Intermediate or Expert tier based on where their price and stated features actually land relative to the rest of the catalog.

Frequently asked questions

What is the difference between memory foam and a hybrid mattress?

Memory foam mattresses are built from viscoelastic foam layers that slowly contour to body heat and pressure, with a slower, more cushioned feel. Hybrid mattresses combine a coil support core with foam comfort layers on top, which tends to feel more responsive and sleep cooler for some owners since air moves through the coils. Neither type is inherently better; the choice usually comes down to whether you prefer a slow-sink feel or a bouncier, more supportive one.

How long does a memory foam mattress take to feel normal after unboxing?

Most compressed memory foam mattresses expand to their full height within 24 to 72 hours of being unboxed, based on the timeline manufacturers commonly publish. The foam can keep softening into its long-term feel for up to a couple of weeks after that as it airs out and adjusts to room temperature. If a mattress still feels unusually firm or carries a noticeable odor after a couple of weeks, that is worth following up with the seller.

Does memory foam sleep hot?

Traditional memory foam has a reputation for trapping body heat because the dense foam limits airflow. Several mattresses in this roundup, including the Novilla Queen Size Mattress, add a manufacturer-described cooling feature such as a gel infusion meant to offset that. Owner reviews suggest these features help some sleepers, though results vary by body type and bedroom temperature, so a breathable sheet set and a cooler room still make the biggest difference.

How often should a memory foam mattress be replaced?

A commonly repeated guideline in the mattress industry is to replace a memory foam mattress roughly every 7 to 10 years, though that is a convention rather than a fixed rule. Foam that has developed a permanent body impression deeper than about an inch, or that no longer recovers its shape after you get up, is usually a sign it is past its useful life regardless of its exact age.

What size memory foam mattress should I buy?

Size comes down to the room and who is sleeping in it. A queen fits most bedrooms and one or two sleepers comfortably, a full works for a single sleeper in a smaller room, and a king or California king gives two sleepers more personal space if the room allows for it. Check the room's dimensions against the mattress and its walking clearance before ordering, since returning a full-size mattress is far more of a hassle than returning bedding.

How to read the numbers on this page. Standard mattress and bedding dimensions are industry-wide and the same across manufacturers. Guidance like replacement intervals, firmness by body weight and walking clearance is convention rather than a measured standard, and every table here says which it is. Where a manufacturer does not publish a figure we leave it out instead of estimating. This is not medical advice: a mattress is not a treatment for a medical condition, and persistent pain is a reason to see a clinician.