Sealy
Sealy Posturepedic Memory Foam Firm 11" Mattress
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The honest verdict: the Sealy Posturepedic Memory Foam Firm is for people who want the conforming feel of memory foam without sinking into a soft bed. It is all-foam, no coils, built from a layer of pressure-relief memory foam that molds to your body, a transition layer, and a high-density support core that holds firm underneath. At a firm feel that lands around 8 out of 10 on an 11-inch profile, it cradles your pressure points while keeping your back supported, and a cooling cover counters the heat memory foam can hold. If you like the hug of foam but still need real support, this is the firm one. Come lie on it at any of the five Kentucky showrooms before you decide.
What you notice in the first minute
Lie down and the top layer gives slowly, settling around your shoulders and hips instead of pushing back. That is the hug people come to foam for. Then something the soft foam beds never do: instead of sinking further, you reach the firm core and stop there. You feel both the cradle and the firm base inside the first minute, and rolling from back to stomach you never feel stuck. A firm foam feel reads differently for every body, so it is worth a few real minutes in person.
What it is made of, and what that does for you
- Pressure-relief memory foam. A top layer that molds to your body and takes the load off your shoulders and hips, the memory-foam hug.
- Transition layer. Bridges the conforming top and the firm core so you do not bottom out, a smooth, supported handoff.
- High-density support core. The all-foam foundation that holds it firm and durable, no coils to wear in or squeak.
- Cooling cover. Counters the heat solid memory foam tends to hold, for a more comfortable foam sleep.
- A firm all-foam feel, around 8 out of 10, on an 11-inch build. Conforming comfort with genuine support, backed by a 90-night comfort trial on select Sealy models.
The foams are CertiPUR-US certified and the build carries a 10-year limited warranty, so the support you feel on the showroom floor is built to hold, not soften out in a season.
Who sleeps best on it
This bed reads best for back and stomach sleepers who want a hug without a soft mattress. On your back, the firm core keeps your hips from dropping and your spine in line while the memory foam takes the edge off your shoulders. On your stomach that firmness matters even more, because a softer bed lets the midsection sag and this one holds it level. If you love the way foam wraps around you but found most foam beds too plush, this is the version built to stay supportive.
Couples do well too. All-foam construction absorbs movement, so when one of you turns the other side barely registers it. Coming off an innerspring that sagged in the middle, you will notice the firm, even support right away, and it pairs with an adjustable base if you like to raise your head or feet.
Who it is not for, and the Mattress Overstock floor would rather say so now
- If you want the bounce and airflow of coils, Sealy's hybrids like the Posturepedic Plus Albany pair foam with a coil core; this one is all-foam.
- If you want a soft, plush feel, this one is firm; the Memory Foam Medium is the softer all-foam option.
- If you sleep very hot, all-foam runs warmer than a coil hybrid even with the cooling cover. Heat is the one thing to test honestly.
Why buy it from Mattress Overstock
Kentucky-owned and serving the state since 2012, with five showrooms you can actually walk into, in Lexington (on Nicholasville Road), Georgetown, Somerset, London, and Richmond. Rated about 4.7 stars across 535 Google reviews, so the help on the floor is the kind people come back for. This is a bed you can lie on in your own sleeping position before you commit, not just a picture on a screen. No appointment needed; select your size to see the live Mattress Overstock price.
Firm foam lands differently for everyone, so lie on it in Lexington this week before you decide. You get a 90-night comfort trial on select Sealy models; if it is not right, you exchange it for store credit toward any bed of equal or greater value, no cash refund, but no restocking-fee games either. Free local delivery, free setup, and the team hauls your old mattress away. And no one on the Mattress Overstock floor earns more for steering you to foam over a hybrid, so the guidance you get is straight.
Still deciding? Compare it with the softer Memory Foam Medium and the coil hybrids in the Sealy lineup, then come feel the difference in person.
What makes this mattress different
Pressure-relief memory foam
A top layer that molds to your body and lifts the load off your shoulders and hips, the memory-foam hug you came to foam for.
High-density support core
An all-foam foundation that holds the bed firm and durable, with no coils to wear in, sag, or squeak over time.
Firm feel, around 8 out of 10
Supportive enough to keep back and stomach sleepers level, with the conforming hug still on top. Not a soft bed, and it won't become one.
Cooling cover
Counters the heat solid memory foam tends to hold, for a more comfortable all-foam sleep.
Excellent motion isolation
All-foam construction absorbs movement, so a partner turning over barely transfers across the bed. Good news for light sleepers and couples.
Adjustable-base friendly
Compatible with an adjustable base, so you can raise your head or feet to read, watch, or take pressure off your lower back.
CertiPUR-US foams, 10-year warranty
Foams are CertiPUR-US certified for content and emissions, and the build carries a 10-year limited warranty, so the support you feel is built to last.
All-foam conforming comfort, kept firm
The Posturepedic Memory Foam Firm is built entirely in foam, with no coils anywhere. From the top down: a cooling cover that counters the heat foam holds; a layer of pressure-relief memory foam that molds to your body and relieves the shoulders and hips; a transition layer that bridges the soft top and the firm base so you don't bottom out; and a high-density support core that does the real work, holding the bed firm and even and giving it its durability. Support comes from that dense foam base rather than springs, which is why it isolates motion so well and runs quieter than an innerspring as it ages. The overall feel lands around 8 out of 10 on an 11-inch profile, and the foams are CertiPUR-US certified.
Want a softer foam feel? The Memory Foam Medium. Want coils and bounce? The Posturepedic Plus Albany hybrid. Or see the whole Sealy lineup and come lie on the contenders side by side in a Kentucky showroom.
Shop the Sealy lineup →Firm foam for back and stomach sleepers who like a hug
Back sleepers: the firm core keeps your hips from sinking and your spine in line, while the memory foam takes the edge off at the shoulders. A strong everyday fit.
Stomach sleepers: firmness matters most here, because a soft bed lets the midsection sag. This one holds level, so you wake up straighter.
Foam-feel lovers who run firm: you want the conforming hug, just not the sink. Around 8 out of 10, this is the supportive version of that feel.
Couples and light sleepers: all-foam absorbs motion well, so a partner's shifts barely transfer. Easier to share, easier to stay asleep.
Coming off a sagging innerspring: the firm, even, no-coil support reads as a clear upgrade the first night, and it pairs with an adjustable base.
Probably not for you if: you want coil bounce and airflow (try the Albany hybrid), a soft, plush feel (the Memory Foam Medium), or you sleep very hot, where a coil hybrid breathes more than any all-foam bed.
Specifications
| Height | 11" |
|---|---|
| Feel | Firm |
| Firmness | 8 out of 10 (10 = firmest) |
| Construction | A cooling cover over pressure-relief memory foam, a transition layer, and a high-density support core: 11 inches, firm, all-foam (no coils). |
| Cooling | A cooling cover counters the heat solid memory foam tends to hold, for a more comfortable all-foam sleep. |
| Motion isolation | Excellent: all-foam construction absorbs movement, so a partner's shifts barely transfer across the bed. |
| Adjustable base | Yes, compatible with adjustable bases |
| Certifications | CertiPUR-US certified foams |
| Warranty | 10-year limited warranty |
| Trial period | 90 nights on select models |
Frequently asked questions
Is this a hybrid or all-foam?
All-foam: there are no coils. Support comes from a high-density foam core, with pressure-relief memory foam and a transition layer on top under a cooling cover. If you want coils and bounce, see Sealy's hybrids like the Posturepedic Plus Albany.
How firm is it, exactly?
It is a firm all-foam feel, landing around 8 out of 10 where 10 is the firmest. Supportive for back and stomach sleepers, but with the conforming memory-foam hug still on top so it is not a hard board. For a softer foam feel, the Memory Foam Medium is the better call.
How tall is the mattress, and will my sheets fit?
It stands 11 inches tall. Standard deep-pocket fitted sheets fit comfortably, and the lower-profile build sits well on platform beds and most existing frames. Worth measuring against your frame and headboard before delivery.
Does memory foam sleep hot?
Solid memory foam holds more heat than a coil hybrid, which is why this one uses a cooling cover to counter it. It is comfortable for most sleepers, but if you run very hot, a coil hybrid breathes more. Heat is the one thing genuinely worth feeling in person.
Can I use it with an adjustable base?
Yes. The all-foam build flexes well, so it is compatible with an adjustable base if you like to raise your head or feet to read, watch, or take pressure off your lower back. It also works on a standard platform or a solid, slat-supported foundation.
Will it isolate my partner's movement?
Very well. All-foam construction absorbs motion rather than passing it along, so when one of you turns over the other side barely registers it. It is one of the strongest reasons couples and light sleepers choose foam over an innerspring.
Is there any off-gassing, and are the foams certified?
The foams are CertiPUR-US certified, an independent standard for content, emissions, and durability. Like most foam beds, it may have a light new-foam smell at first that airs out within a few days once unwrapped in a ventilated room.
What warranty and trial come with it?
The build carries a 10-year limited warranty. On top of that, Mattress Overstock includes a 90-night comfort trial on select Sealy models: if the feel is not right, you exchange it for store credit toward any bed of equal or greater value (no cash refund, but no restocking-fee games either).
How do delivery and setup work?
Mattress Overstock delivers across Kentucky with its own team, usually next business day when your size is in stock, sets the new bed up free, and hauls your old mattress away. No drop-it-at-the-curb routine.
Can I see this mattress in person near me?
Yes, and with a mattress, the floor would always rather you did. Mattress Overstock is a Kentucky-owned company that has served the state since 2012, rated about 4.7 stars across 535 Google reviews, with five showrooms you can visit: Lexington (on Nicholasville Road), Georgetown, Somerset, London, and Richmond. Come lie on this exact mattress in your own sleeping position before you decide. Because everyone on the floor is paid the same no matter which brand you choose, the guidance you get is honest.
Buy it from people you can actually visit
- Free local delivery To your home across Central & Eastern Kentucky.
- Free setup We place and set up your new bed in the room.
- Free old-mattress haul-away The old one goes out the same day the new one comes in.
Independently owned in Kentucky since 2012. Walk in any day (no appointment) and someone who actually knows the floor will help you find the right fit.
Still deciding?
Try it in person at any Kentucky showroom
Walk into any Mattress Overstock location, lie down, and feel the difference yourself. No appointment, no pressure. Our team has over 100 years of combined mattress experience and we're here to help you find the right fit.
