Beautyrest
Beautyrest Black® Series One 14.25" Medium Hybrid Mattress
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The honest verdict: the Beautyrest Black Series One Medium Hybrid is the most universal feel in the Black lineup, a true medium at about 5 out of 10 that suits back, side, and combination sleepers without asking anyone to compromise. It is the hybrid build, so the sleep surface is smooth and contouring rather than a deep quilted top: Beautyrest Gel Memory Foam at the surface over a Triple-Stranded Pocketed Coil core, giving you contour where you press and responsive support where you do not. If you want the safe, suits-almost-anyone medium of Beautyrest Black, this is squarely it.
What you notice in the first few minutes
Lie down in your real sleeping position and the gel memory foam gives at the shoulder and hip without letting you sink. The medium tuning is the point: enough cushion to take pressure off the joints, enough coil support to keep your spine level when you roll from your back to your side. As you move, the Triple-Stranded Pocketed Coils answer each part of you on their own instead of rocking the whole bed, the most advanced motion separation Beautyrest builds, so a restless partner stays on their own side. The cool-touch Sleep Climate cover reads cool on contact, and because the coil core breathes more than solid foam, it does not bank heat the way an all-foam medium can.
The Series One build
Series One is the introductory tier of Beautyrest Black, and it still earns the name: a cashmere-blend cover, a quilted border, velvet accents, and eight handles for squaring it up on the frame. Beautyrest Gel Memory Foam does the contouring; the Triple-Stranded Pocketed Coil core does the support and the motion isolation. CertiPUR-US certified foams and a 10-year limited warranty apply, the 14.25-inch profile is substantial, so measure it against your frame and plan on deep-pocket sheets, and it works on an adjustable base.
Who it suits, and who it does not
This is the all-rounder for a mixed-sleep household. Back and combination sleepers get contour without losing support through a position change. Couples who sleep differently get the safest compromise on firmness, plus the motion separation Black is known for, so one person's tossing barely crosses the bed. Side sleepers who also spend time on their back get enough give for the shoulder and enough support for the roll-over.
It is honestly not the bed for you if you want a specifically plush or firm feel. Medium is the middle. For deep cushion, look at the Series One Plush Pillow Top; for firmer support, the Firm Pillow Top brackets it on the other side. And if you are after a deep memory-foam hug, this is a responsive coil hybrid, not an enveloping foam bed.
How it compares, inside Series One and up the Black line
The closest call is the standard Series One Medium, which shares the same true-medium feel and the same Black coil support. The two are genuinely close, so the honest move is to lie on both in the showroom and let your body pick rather than choose from a spec sheet. To feel where the money goes higher up the line, Series Two adds Micro Diamond Memory Foam for extra cooling and more pressure relief; Series One gives you the same coil support and the universal medium feel for less.
How to shop it at Mattress Overstock
A true medium is the safest pick when a household sleeps in different positions, but medium still feels different bed to bed, and the only way to know is to lie down. Do exactly that at any of the five Kentucky showrooms in Lexington, Richmond, Georgetown, London, and Somerset, no appointment needed, and feel this Medium Hybrid beside the Plush and Firm options. Mattress Overstock is Kentucky-owned and has served the state since 2012, with about 4.7 stars across 500-plus Google reviews. Select your size to see the live price. Delivery, setup, and old-mattress haul-away are free across the Kentucky service area, and you get a 100-day comfort guarantee: if the feel is not right, exchange it for store credit toward any bed of equal or greater value, with no restocking-fee games. Because everyone on the floor is paid the same no matter which brand you choose, the guidance you get is honest. Feel it against its neighbors in the full Beautyrest Black lineup.
What makes this mattress different
The universal medium feel
A true 5-out-of-10 medium that suits back, side, and combination sleepers: the safe pick for households with different sleep styles.
Triple-Stranded Pocketed Coil core
Individually-wrapped coils carry the support and deliver the most advanced motion separation Beautyrest builds, so a partner's movement barely crosses the bed.
Beautyrest Gel Memory Foam contouring
Gel memory foam at the surface gives at the shoulder and hip for pressure relief, without the deep sink of an all-foam bed.
Smooth, contouring hybrid surface
This is the hybrid build, so the top is smooth and conforming rather than a deep quilted pillow top: contour up top, real coils underneath.
Cool-touch Sleep Climate cover
The cover reads cool on first contact and the breathing coil core sheds heat better than a solid foam block, so it sleeps cooler than an all-foam medium.
Genuine Series One Black detailing
A cashmere-blend cover, quilted border, velvet accents, and eight handles for maneuvering: the introductory Black tier still feels premium.
14.25-inch profile, adjustable-base friendly
A substantial Black hybrid that works on an adjustable base. Measure it against your frame and plan on deep-pocket sheets.
CertiPUR-US foams, 10-year warranty
CertiPUR-US certified foams, made without formaldehyde or prohibited flame retardants, backed by a 10-year limited warranty.
The most universal Black feel, on a pocketed-coil core
The Medium Hybrid is the smooth, contouring build in Series One: Beautyrest® Gel Memory Foam at the surface, over the Triple-Stranded Pocketed Coil® core. Tuned to a true 5-out-of-10 medium, it gives contour where you press and support where you don't, the feel that suits the widest range of sleepers.
The pocketed coils are what make it a hybrid worth choosing: independent support that holds your spine level, and the most advanced motion separation Beautyrest builds, so a partner's movement stays on their side of the bed. The cool-touch Sleep Climate™ cover and the breathing coil core keep it from sleeping warm.
Series One is the introductory tier of Beautyrest Black, and it still earns it: a cashmere-blend cover, a quilted border, velvet accents, and eight handles for squaring it up. CertiPUR-US® certified foams and a 10-year limited warranty apply.
This shares its true-medium feel with the standard Series One Medium, they're close, so compare them in person. For a different feel, the Plush Pillow Top and Firm Pillow Top bracket it. To feel the next tier up, Series Two adds Micro Diamond Memory Foam for extra cooling. Full range 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.
The all-rounder for mixed-sleep households
Back and combination sleepers, a true medium over pocketed coils gives contour without losing support when you change position through the night.
Couples with different sleep styles, medium is the safest compromise, and the coils keep one partner's movement off the other's side, so a restless sleeper doesn't wake a light one.
Side sleepers who also sleep on their back, enough give for the shoulder, enough support for when you roll over. A dedicated side sleeper who wants deeper cushion should try the Plush instead.
Warm sleepers who don't want all-foam, the cool-touch Sleep Climate cover and the breathing coil core run cooler than a solid foam medium, though a dedicated hot sleeper should also feel the firmer, more open builds.
Shoppers who want true Beautyrest Black without the top-tier price, Series One gives you the Triple-Stranded Pocketed Coil support and the universal medium feel; the Micro Diamond cooling and added pressure relief live further up the line in Series Two.
Probably not for you if you want a specifically plush or firm feel (see the Plush or Firm Pillow Top) or a deep memory-foam hug, which this responsive coil hybrid is not built to give.
Specifications
| Height | 14.25" |
|---|---|
| Feel | Medium Hybrid |
| Firmness | 5 out of 10 (10 = firmest) |
| Construction | Cool-touch Sleep Climate™ quilting over Beautyrest® Gel Memory Foam and a true-medium Triple-Stranded Pocketed Coil® support core. 14.25 inches, medium hybrid. |
| Cooling | Sleep Climate™ cool-touch 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 One Medium Hybrid?
A true medium, about 5 out of 10. It contours at the surface via Beautyrest Gel Memory Foam and supports through the Triple-Stranded Pocketed Coil core, which makes it comfortable for back, side, and combination sleepers alike.
What makes it a hybrid, and how is the surface different from a pillow top?
It pairs Beautyrest® Gel Memory Foam over a Triple-Stranded Pocketed Coil® support core. The coils provide the support and motion separation; the gel foam provides the contour. As the hybrid build, the sleep surface is smooth and contouring rather than the deep quilted top you get on the pillow-top models.
How is it different from the standard Series One Medium?
They share the same true-medium feel and Black coil support, so they're genuinely close. The best way to choose is to lie on both in the showroom (we keep the standard Medium on the floor too) and let your body decide.
How does Series One compare to Series Two, Three, and Four?
Series One is the introductory Beautyrest Black tier, with the Triple-Stranded Pocketed Coil core, gel memory foam, and the cool-touch Sleep Climate cover. Series Two adds Micro Diamond Memory Foam for extra cooling and pressure relief; Series Three and Four step up to Nano Coil upgrades and added foam height. Series One gives you the same coil support and the universal medium feel for less.
Is a medium good for couples?
It's usually the safest pick when two people sleep differently (supportive enough for back and stomach sleeping, forgiving enough for side sleeping) and the pocketed coils deliver the most advanced motion separation Beautyrest builds, so one person's movement doesn't wake the other.
Does it sleep hot?
Less than an all-foam medium. The cool-touch Sleep Climate cover reads cool on contact, and because the pocketed-coil core breathes more than a solid block of foam, heat has somewhere to go. If running hot is your single biggest issue, it's worth feeling the firmer, more open builds too, and the floor staff can point you to them.
What is it actually made of?
A cashmere-blend cover with a quilted border, velvet accents, and eight handles for maneuvering; Beautyrest® Gel Memory Foam for contouring; and a Triple-Stranded Pocketed Coil® core for support and motion separation. It stands 14.25 inches tall and works on an adjustable base.
Does it have a certification and a warranty?
Yes. The foams are CertiPUR-US® certified, meaning they're made without formaldehyde, prohibited flame retardants, prohibited phthalates, or heavy metals, and meet low-VOC standards for indoor air. It carries a 10-year limited warranty.
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, and we haul the old mattress away, all free across the service area. 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 about 4.7 stars across 500-plus Google reviews and 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.
