Beautyrest
Beautyrest Black® Series Two 14.25" Firm Hybrid Mattress
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The honest verdict: the Series Two Firm Hybrid is the hybrid-build firm of the Series Two line, about a 7 out of 10, with firm pocketed-coil support and the Series Two cooling step-up. It sits alongside the standard Series Two Firm; the two are close, and the honest move is to feel both. Either way you get genuinely firm support that sleeps cooler and contours a touch more kindly than the Series One firm options, a strong pick for back and stomach sleepers who want firm without hard or hot.
What it is, honestly, and what the build does for you
Think of this as firm support with a thin layer of give on top, not a board. At 14.25 inches it is a substantial bed, but the comfort layer is kept deliberately measured: Sleep Climate quilting and a thin layer of Beautyrest Gel Memory Foam over the support core, so you rest on top of the bed rather than sink into it. Underneath is the Triple-Stranded Pocketed Coil core, tuned firm, each coil wrapped on its own. That is where the 7-out-of-10 feel comes from: hips lifted, spine level, and a surface that reads as supportive rather than hard.
What you notice in the first few minutes lying on it
Lie on your back and the first thing you feel is the lift: the gel foam takes the sharp edges off, then the coils carry your weight evenly, with no real settling at the hips. Sitting that close to a firm surface is exactly why the cooling earns its keep. The Series Two step-up is not a marketing word: every Series Two build adds Micro Diamond Memory Foam, infused with diamond particles that pull heat away from your body, on top of a coil core that breathes far more than all-foam. The result reads as supportive and cool, not hard and warm.
Who it suits, and who it does not
This is built for back and stomach sleepers, especially ones who run warm: back sleepers get level coil support, and stomach sleepers get a feel that keeps the hips from sagging and the lower back from arching. The Mattress Overstock team would rather flag the misfits now than have you find out at home: if you sleep on your side, a 7/10 firm will press on your shoulder and hip, and a medium or plush Black is the better fit; if you simply want the most accessible firm Black, the Series One Firm Pillow Top delivers firm support at the entry tier.
How it compares, and living with it over time
The closest comparison is its own sibling, the standard Series Two Firm, which shares the same firm feel, so the difference is genuinely subtle and the only reliable way to choose is to lie on both and let your body decide. The cooling step-up is also the practical reason to move up from a firmer Series One that slept warm. Day to day, the pocketed coils are the quiet advantage: because they move independently, a partner shifting or getting up barely crosses the bed, a real difference if you share with a restless sleeper. The firm-tuned core is built to hold its shape, so the support you feel on day one is what you are buying into for years. It pairs with an adjustable base, uses only CertiPUR-US certified foams, and carries a 10-year limited warranty on a premium Black build.
Why buy it from Mattress Overstock
Locally owned and serving Kentucky since 2012, with five showrooms you can actually walk into, in Lexington (on Nicholasville Road), Georgetown, Somerset, London, and Richmond, no appointment needed. Whether a firm bed sleeps cool or just hard is a lying-down question, so come feel the Series Two firms side by side and let the team help. You get a 100-day comfort guarantee; if it is not right, 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, usually next business day when your size is in stock. And no one on the floor earns more for steering you up a tier, so the guidance stays honest. Select your size to see the live Mattress Overstock price, and compare the full Beautyrest Black lineup.
What makes this mattress different
Firm support, hybrid build
A 7-out-of-10 firm feel in the Series Two hybrid construction: supportive lift without sleeping hard, and with real cooling so it never reads as hot.
Triple-Stranded Pocketed Coil core
Individually-wrapped coils tuned firm carry your weight evenly and keep hips lifted, with Black's signature motion separation built in.
Micro Diamond cooling
Every Series Two build adds Micro Diamond Memory Foam, infused with diamond particles to pull heat away from your body, the step-up that matters most on a firm surface.
Near-silent on a partner's side
The pocketed coils move independently, so a restless partner shifting or getting up barely crosses the bed.
14.25-inch premium build
A substantial profile with a measured comfort layer over the Black coil core, so you rest on top of the support rather than sinking in.
Adjustable-base ready, CertiPUR-US foams
Works with an adjustable base for reading or zero-gravity, built with CertiPUR-US certified foams and backed by a 10-year limited warranty.
Feel it before you commit
Lie on the Series Two firms side by side at a Kentucky showroom, then sleep on it with a 100-day comfort guarantee and free local delivery.
Firm support in the Series Two hybrid build
Top to bottom, the Series Two Firm Hybrid is engineered to feel firm and supportive without sleeping hard or hot:
- Sleep Climate quilting: the surface layer that helps move heat away as you settle in.
- Micro Diamond Memory Foam: in every Series Two build, infused with diamond particles to draw warmth away from the body, the cooling step-up over Series One.
- Measured Beautyrest Gel Memory Foam: a thin comfort layer that takes the sharp edges off so you rest on top of the support rather than sinking in.
- Triple-Stranded Pocketed Coil core, tuned firm: each coil wrapped on its own to keep hips lifted and the spine level, and to keep a partner's movement from crossing the bed.
At 14.25 inches it is a substantial bed, pairs with an adjustable base, and uses only CertiPUR-US certified foams under a 10-year limited warranty.
It's a close sibling to the standard Series Two Firm: same firm feel, and the best way to choose between them is to lie on both. For firm at the entry tier, the Series One Firm Pillow Top. See the firm options in the Beautyrest Black lineup.
Shop the Beautyrest Black lineup →What's inside Beautyrest Black
Five layers, engineered together: a cool quilted surface, pressure-relieving gel foam, and the Triple-Stranded Pocketed Coil® core that defines the Black line.
For back and stomach sleepers who run warm
Back sleepers: firm coil support carries your weight evenly and keeps the spine level, with enough cooling to stay comfortable through the night.
Stomach sleepers: the firm feel keeps the hips from sagging and the lower back from arching, the support this position needs.
Warm firm-sleepers: the Series Two cooling step-up, Micro Diamond Memory Foam over a breathable coil core, is aimed squarely at people who want a firm bed without the heat.
Heavier back and stomach sleepers: the Triple-Stranded Pocketed Coil core is tuned firm to hold its shape and keep hips lifted, the kind of support that holds up under more weight.
Couples with one restless sleeper: the pocketed coils move independently, so a partner shifting or getting up barely reaches your side.
Probably not for you if: you sleep on your side, where a 7/10 firm will press on your shoulder and hip and a medium or plush Black suits better, or you want the most accessible firm Black, which is the Series One Firm Pillow Top.
Specifications
| Height | 14.25" |
|---|---|
| Feel | Firm Hybrid |
| Firmness | 7 out of 10 (10 = firmest) |
| Construction | Sleep Climate™ quilting over a measured Beautyrest® Gel Memory Foam comfort layer and a firm-tuned Triple-Stranded Pocketed Coil® core: 14.25 inches, firm hybrid. |
| Cooling | Series Two enhanced cooling: Sleep Climate™ quilting and Beautyrest® Gel Memory Foam over a Triple-Stranded Pocketed Coil core that breathes more than all-foam. |
| Motion isolation | Excellent: Triple-Stranded Pocketed Coils move independently, so a partner's movement barely crosses the bed. |
| Adjustable base | Yes, compatible with adjustable bases |
| Certifications | CertiPUR-US certified foams |
| Warranty | 10-year limited warranty |
| Trial period | 100 days at Mattress Overstock |
Frequently asked questions
How firm is the Series Two Firm Hybrid?
About a 7 out of 10: genuinely firm and supportive, in the Series Two hybrid build with enhanced cooling so it doesn't sleep hard or hot. Firm feels best for back and stomach sleepers.
How is it different from the standard Series Two Firm?
They're close: same firm feel in the Series Two line. The standard Series Two Firm is the sibling; the honest way to choose is to lie on both, which you can do on our floor.
Is it a hybrid, and what does that mean here?
Yes. Beautyrest Gel Memory Foam over a firm-tuned Triple-Stranded Pocketed Coil support core. A hybrid gives you a smoother, more contouring surface than a quilted innerspring, with the lift and motion separation of individually-wrapped coils underneath.
What makes the Series Two sleep cooler than Series One?
Every Series Two build adds Micro Diamond Memory Foam, infused with diamond particles that draw heat away from the body, on top of Sleep Climate quilting and a coil core that breathes more than all-foam. That cooling step-up matters most on a firm surface, which sits you closer to the materials.
Is this a good firm mattress for couples?
For couples who want firm support, yes. The Triple-Stranded Pocketed Coils move independently, so when one of you shifts or gets up, the movement barely crosses to the other side. If one of you is a side sleeper, though, a medium Black may be the better shared choice.
Can I use it with an adjustable base?
Yes. The Series Two Firm Hybrid works with an adjustable base for reading, watching TV, or a zero-gravity position. Skip a traditional box spring, which can affect a hybrid's support and warranty; the floor team can match you to the right base.
Does it contain fiberglass?
This is a premium Beautyrest Black build using CertiPUR-US certified foams, made without the substances that certification screens out. For the exact fire-barrier materials on a specific size, ask the team and we'll confirm before you buy.
What warranty does it carry?
A 10-year limited warranty on a premium Black build with CertiPUR-US certified foams. The firm-tuned core is built to hold its shape, so the support you feel on day one is what you're buying into for years.
How do delivery and the comfort guarantee work?
We deliver across Kentucky with our own team, usually next business day when your size is in stock, free setup, and we haul the old mattress away. You also get a 100-day comfort guarantee: if the feel isn't right, exchange it for store credit toward any bed of equal or greater value (no cash refund).
Can I see this mattress in person near me?
Yes, and with a mattress, we'd always rather you did. Mattress Overstock is a Kentucky-owned company that has served the state since 2012, 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. We deliver free across our Kentucky service area and haul your old mattress away, and because everyone on our 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.
