Polyfoam vs Memory Foam: Which Layers Suit Your Sleep

Memory foam and polyfoam are the two foam layers you will meet on almost every mattress label, and they behave differently under your body. Memory foam is the slow, contouring material that hugs curves and eases pressure at the hips and shoulders, while polyfoam is the quicker, springier foam that pushes back and keeps you lifted. The Saatva Classic, our pick in this guide, pairs a cushioning foam layer with a dual-coil support core, so you get the pressure relief of foam without the deep sink, and it comes with a 365-night home trial, free white-glove delivery with old mattress removal, and a lifetime warranty.

Our pick

Saatva Classicthe foam-plus-coil answer for sleepers who want cushioning without sink

• 365-night home trial
• Free white-glove delivery and old-mattress removal
• Lifetime warranty
• Three comfort levels, from Plush Soft to Firm

Check today’s Saatva price →

Which foam should you choose, polyfoam or memory foam?

Choose memory foam when you want the mattress to mold to your shape and hold you there, and choose polyfoam when you want to stay on top of the surface and move freely. The right answer depends on how you sleep, how much you move at night, and whether you prefer a hugging feel or a lifted one. Below we match each foam type to the sleeper it suits, then show the Saatva models where each appears.

Who is each foam type for?

Memory foam suits sleepers who want pressure relief and a close contour. Saatva’s Loom and Leaf uses a 5-lb memory foam core for a deep, body-hugging feel, with gel-infused memory foam that molds to your curves. It is aimed at side sleepers, back sleepers, and couples who want a cradled feel, and the Relaxed Firm comfort level is described as hugging the body without letting the hips sink too far. The Firm option at 8 out of 10 adds more push back for stomach sleepers and people who move around a lot.

Polyfoam suits sleepers who want responsiveness. On the Saatva Classic, the comfort layer sits above a dual-coil core of triple-tempered recycled carbon steel, and the result is described as lying on top of the mattress rather than sinking in on the Firm level. If you change positions at night, get in and out of bed often, or simply dislike the slow recovery of memory foam, this is the feel to look for.

Here is the short version of who each foam suits:

• Memory foam: side sleepers who need cushioning at the hips and shoulders, back sleepers who want contouring, couples who prefer a cradled feel, and anyone who likes the classic slow-response hug.
• Polyfoam: combination sleepers who roll over at night, stomach sleepers who want to stay lifted, hotter sleepers who prefer more airflow around the surface, and anyone who finds memory foam too slow or too enveloping.

How do the foam layers change the feel of a mattress?

The comfort layer decides the first thing you feel when you lie down, and the support layer decides how your spine is held. On Loom and Leaf, gel-infused memory foams with micro perforations form the comfort system, and Lumbar Zone quilting with a gel-infused memory foam lumbar crown adds support under the lower back. On the Saatva Classic, a 3-inch Euro pillow top provides cushioned comfort while the dual-coil design supplies the push back underneath. The same sleeper can feel very different on these two builds: one sinks and contours, the other stays buoyant.

That difference also explains why firmness numbers matter. The Saatva Classic is offered at Plush Soft 3 out of 10, Luxury Firm 5 to 7 out of 10, and Firm 8 out of 10. Loom and Leaf is offered at Relaxed Firm, described as a true medium firmness, and Firm at 8 out of 10. A softer number means more contouring and more sink; a firmer number means more surface resistance. Neither number is a verdict on quality, only a signal of how the foam will feel under you.

What do the specs say about the two Saatva foam mattresses?

The table below lists the official regular price for each model, the feel the brand describes, and the sleeper each one is built for. Prices are the list prices shown on the official Saatva pages; a temporary sale may be running at the time you read this.

Which Saatva should you buy for each foam feel?

Buy the Saatva Classic if you want foam comfort paired with a coil support core. It is the model for sleepers who like a cushioned top but do not want to feel stuck, and it is available in three comfort levels so you can match the feel to your sleep position. Buy Loom and Leaf if you want the full memory foam experience: a 5-lb memory foam core, gel-infused layers that contour to your curves, and a lumbar crown for extra support under the lower back. Both models carry the same Saatva service standards, including the 365-night home trial and the lifetime warranty.

For a closer look at the Classic’s firmness options, read our Saatva Classic firmness guide, or see the full Saatva buying guide for how the models sit next to each other.

What do delivery, trial and warranty look like?

Saatva includes free white-glove delivery with in-room setup on its mattresses, and the old mattress can be taken away at no extra cost when you check the removal option at checkout. Every Saatva mattress comes with a 365-night home trial, so there is a full year to decide whether the feel suits you. The warranty covers defects in workmanship and materials for as long as the original purchaser owns the mattress, and it includes a Fairness Replacement Option. If a firmness level turns out to be wrong after delivery, the brand offers guidance on what to do rather than leaving you with a mattress that does not match your sleep style.

Who should not buy these mattresses?

Neither of these models is the right answer for every sleeper. Skip the memory foam route if you actively dislike a hugging, contouring feel or you wake up feeling trapped by the surface, since that is exactly what a 5-lb memory foam core is designed to do. Skip the Saatva Classic if what you want is a pure foam mattress with no coils at all, because its support core is built from steel coils by design. Shoppers working to a tight budget should also compare the full price range before committing, since both models sit in the premium tier rather than the entry tier.

If persistent aches or a medical condition are part of your decision, a mattress is a comfort product and not a treatment. Talk with a doctor about ongoing pain, and use the trial period to judge the feel for yourself.

World Sleep Almanac score: 8.4/10

The World Sleep Almanac editorial score for the top pick in this guide, the Saatva Classic, is 8.4 out of 10. The score is an editorial rating based on these criteria:

• Price at equal size: a clear list price published for every size, with three comfort levels included rather than charged separately.
• Trial and returns: a 365-night home trial with a full year to decide.
• Warranty: lifetime coverage on defects for the original owner.
• Materials and construction: CertiPUR-US certified foams, GREENGUARD Gold certification, and an endorsement from the American Chiropractic Association.
• Delivery: free white-glove setup with old mattress removal included.

The scoring method is editorial and is explained in full on our methodology page.

FAQ

Is polyfoam or memory foam better for side sleepers?

Memory foam is generally the better match for side sleepers, because it contours to the hips and shoulders and spreads pressure across a wider area. Loom and Leaf’s Relaxed Firm level is described as hugging the body without letting the hips sink too far, which is the balance side sleepers usually look for. A side sleeper who prefers to stay lifted can still do well on a softer polyfoam comfort layer, so feel preference matters as much as the material name.

Does memory foam sleep hotter than polyfoam?

Memory foam is the denser material and traditionally holds more heat, which is why Saatva’s Loom and Leaf uses gel-infused memory foam with micro perforations and a naturally breathable organic cotton cover to increase airflow. Polyfoam comfort layers sit above coil systems that allow air to move through the mattress, as with the Saatva Classic’s dual-coil design. If sleeping cool is your main concern, look for gel infusion, perforations, or a coil base alongside whichever foam you choose.

How long does each foam type last?

Foam longevity depends on density, weight on the mattress, and how the support layer underneath is built. Saatva backs both models with a lifetime warranty covering defects in workmanship and materials for as long as the original owner keeps the mattress, and the Classic’s coils are triple-tempered for durability. During the 365-night trial you can judge how the foam holds up in your own bedroom rather than relying on a general number.

Can I try a Saatva foam mattress at home before deciding?

Yes. Every Saatva mattress ships with a 365-night home trial, so you have a full year to sleep on the mattress in your own room. Delivery is free white-glove setup, and if you want the old mattress taken away, check the removal box at checkout and the crew handles it at no additional cost.

Which Saatva is the memory foam option?

Loom and Leaf is Saatva’s memory foam mattress, built around a 5-lb memory foam core with gel-infused layers and a lumbar crown. The Saatva Classic is the foam-plus-coil option, with a cushioned comfort layer above a dual-coil support base.

Reviewed by the World Sleep Almanac editorial team, updated October 2026.