Beautyrest
Beautyrest Black® Series Three 16.25" Medium Pillow Top Mattress
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The honest verdict: the Series Three Medium Pillow Top is the upper-tier medium in the Beautyrest Black line, and it earns the step up with hardware you can feel. It layers 2K Micro Coils into the pillow top for finer, more individualized support, adds Self-Response™ Latex for responsive pressure relief, and uses Micro Diamond™ foam with Sleep Climate™ cooling to handle heat. At a true 5 out of 10 on a tall 16.25-inch build, it is for the medium-feel sleeper who wants the most refined version Beautyrest Black offers below the flagship. If you lay on the Series Two medium and wanted more precision and more cushion, this is the bed.
What you notice lying on it
The surface gives before the support does. The gel quilted into the top reads as immediate softness, then the bed catches you as the latex and 2K Micro Coils push back gently and fill the gaps at your lower back and waist. It is a medium, so you settle in without feeling stranded, and the surface keeps up when you roll from back to side. A tall pillow-top medium cradles you more than a flat firm bed, which is where the Micro Diamond foam and cool-to-the-touch cover earn their keep, and a partner shifting at 3 a.m. barely reaches your side. It also flexes with an adjustable base.
What it's made of, and what that does for you
- 2K Micro Coils in the pillow top. A second, finer coil layer above the main core responds to smaller contours at the shoulder, lower back, and hip, so the surface tracks your shape, not just your weight. On Series Three these coils are in the pillow-top models only.
- Self-Response Latex and SurfaceTouch Gel. Latex adds responsive, buoyant pressure relief that foam alone cannot, so the bed feels cushioned without feeling slow; the gel is quilted into the surface for softness the moment you lie down.
- Micro Diamond cooling, Sleep Climate Technology, and a cool-to-the-touch cover. Built to pull heat away from the surface, the Series Three cooling step, over a coil core that breathes more than an all-foam bed.
- Triple-Stranded Pocketed Coil core, 16.25 inches. The main support and motion separation under all the comfort layers. The coils move independently, so a partner's movement barely crosses the bed. Plan for deep-pocket sheets.
- CertiPUR-US certified foams, 10-year limited warranty. The foams are certified made without formaldehyde, flame retardants, prohibited phthalates, and heavy metals: the refined medium of the line.
Who it's for, and who it's not (said straight)
This is the medium for back and combination sleepers who want one bed across positions, for pressure-sensitive sleepers who feel it most at the shoulders and hips, and for couples who want one person's movement to stay on one side. Here is who should look elsewhere on the floor:
- If you want the most accessible Black medium. The Series Two Medium Pillow Top gives a cushioned medium without the 2K coils and latex, one tier down.
- If you want the absolute top. Series Four adds 4K coils and an Apex Top across the board; see the full lineup.
- If you sleep strictly on your stomach or want a firm surface. This is a true 5 out of 10 pillow top, built to cradle rather than hold you flat.
- If a tall bed is a problem. At 16.25 inches plus a foundation this sits high; measure your frame and sheets first.
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. The difference 2K Micro Coils and latex make is the kind of thing you feel in two minutes and cannot read off a spec sheet, so come compare the two mediums in person.
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. And no one on the floor earns more for steering you up a tier, so the guidance stays honest. Select your size above to see the live Mattress Overstock price, then feel the tiers side by side in the full Beautyrest Black lineup.
What makes this mattress different
2K Micro Coils in the pillow top
A finer second coil layer above the main core responds to smaller contours at the shoulder, lower back, and hip, so the surface tracks your shape, not just your weight.
Self-Response Latex
Real latex adds responsive, buoyant pressure relief that foam alone cannot, so the bed cushions you without feeling slow to recover when you move.
SurfaceTouch Gel Memory Foam
Gel memory foam quilted directly into the surface for immediate softness the moment you lie down.
Micro Diamond foam and Sleep Climate cooling
Diamond-infused memory foam, Sleep Climate Technology, and a cool-to-the-touch cover are built to transfer heat away from the surface: the Series Three cooling step.
Triple-Stranded Pocketed Coil core
The independently moving support core under every comfort layer, the part that keeps a partner's late-night turn from crossing the bed.
True medium, 16.25-inch build
A genuine 5 out of 10 feel on a tall pillow-top build that cradles without holding you flat. Plan for deep-pocket sheets.
CertiPUR-US certified foams
The foams are certified made without formaldehyde, flame retardants, prohibited phthalates, and heavy metals, and meet low-VOC standards for indoor air quality.
10-year limited warranty
Beautyrest backs the Black Series Three with a 10-year limited warranty: the refined upper-tier medium of the line.
A medium with a second coil layer and real latex
Series Three adds hardware over Series Two, and the medium pillow top is where you feel it. Start at the surface: SurfaceTouch™ Gel Memory Foam is quilted directly into the top for immediate softness, and a cool-to-the-touch cover sits over it. Just beneath, the pillow top carries 2K Micro Coils, a finer layer of individually-wrapped coils that responds to small contours like the shoulder, lower back, and hip, so support tracks your shape and not only your overall weight. Pillow-top models are the only Series Three beds that get these coils.
Below that, Self-Response™ Latex adds responsive, buoyant pressure relief with a ventilated design, and Micro Diamond™ Memory Foam plus Sleep Climate™ Technology pull heat away from the body. It all rides on the Triple-Stranded Pocketed Coil® core, the part that delivers individualized support and the motion separation Beautyrest Black is known for. The total build stands 16.25 inches tall.
The result is a true medium that feels more precise and more cushioned than the Series Two Medium Pillow Top a tier below. The flagship Series Four adds 4K coils and an Apex Top across the board. Feel the tiers side by side 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 the medium sleeper who wants the refined version
Back sleepers get a surface that fills the gap at the lower back while the coils keep the hips from sinking, the classic case for a true medium.
Combination sleepers who change positions all night get a top that keeps up on the roll from back to side without feeling stuck.
Side sleepers who run medium rather than soft get pressure relief at the shoulder and hip from the latex, gel, and 2K Micro Coils, without the bed caving.
Couples get the Triple-Stranded Pocketed Coil core, so one person's movement stays on one side of the bed.
Hot sleepers who want a coil bed get the Micro Diamond foam, Sleep Climate cooling, and a cool-to-the-touch cover, over a coil core that breathes more than all-foam.
Probably not for you if you sleep strictly on your stomach or want a firm, on-top-of-the-bed feel (this is built to cradle), if you want the most accessible Black medium (the Series Two Medium Pillow Top), or if a tall, high-profile bed is a problem.
Specifications
| Height | 16.25" |
|---|---|
| Feel | Medium Pillow Top |
| Firmness | 5 out of 10 (10 = firmest) |
| Construction | Pillow top with 2K Micro Coils, Self-Response™ Latex, SurfaceTouch™ Gel and Micro Diamond™ foam over a Triple-Stranded Pocketed Coil® core: 16.25 inches, medium. |
| Cooling | Series Three cooling: Micro Diamond™ memory foam and a cool-to-the-touch cover pull heat off the surface, 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
What are 2K Micro Coils?
A second, finer layer of individually-wrapped coils built into the pillow top, above the main support core. They respond to smaller body contours for more individualized support than the main coils alone. On Beautyrest Black Series Three, these coils appear in the pillow-top models only, which is exactly what this 16.25-inch medium is.
How is Series Three different from Series Two?
Series Three keeps everything Series Two does and adds three things: 2K Micro Coils in the pillow top, Self-Response™ Latex for responsive pressure relief, and an upgraded cooling cover. The Series Two Medium Pillow Top is the tier below; Series Four is the flagship above it, with 4K coils and an Apex Top.
How firm is it?
A true medium, about 5 out of 10 where 10 is firmest. The 2K Micro Coils make it more precise and the latex and pillow top make it more cushioned, so it cradles you rather than holding you flat. It suits back, combination, and many side sleepers, and is not the pick for strict stomach sleepers or anyone who wants a firm surface.
How tall is the mattress, and will my sheets fit?
It stands 16.25 inches tall. Add a foundation or adjustable base and it sits high, so measure your frame first. You will want deep-pocket sheets to fit a build this thick.
Does it work with an adjustable base?
Yes. The pocketed-coil construction flexes with an adjustable base. Come tell the floor what base you have or plan to buy and we will confirm the fit for your size.
How does it sleep for couples and for heat?
For couples, the Triple-Stranded Pocketed Coil core moves independently, so a partner's movement barely crosses the bed. For heat, Micro Diamond™ Memory Foam, Sleep Climate™ Technology, and a cool-to-the-touch cover are built to transfer heat off the surface, over a coil core that breathes more than an all-foam bed.
What certifications does it carry?
The foams are CertiPUR-US certified, which means they are made without formaldehyde, flame retardants, prohibited phthalates, and heavy metals, and meet low-VOC standards for indoor air quality. It carries a 10-year limited warranty from Beautyrest.
Is there fiberglass in it?
Beautyrest publishes the CertiPUR-US certification for the foams (made without flame retardants in the foam), but it does not publish the material used in this model's fire barrier, so we will not claim it is fiberglass-free when the maker has not stated it either way. Two practical notes: never unzip or remove the cover (the fire barrier sits under it on most mattresses, and removing the cover can void the warranty), and if the exact fire-barrier material matters to you, ask us on the floor and we will get the answer from Beautyrest before you buy.
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, with free setup, and we haul your old mattress away. You also 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. There is no cash refund, but no restocking-fee games either.
Can I see this mattress in person near me?
Yes, and with a mattress this is the part that actually settles it. 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, next to the Series Two medium, before you decide. No appointment needed, and because everyone on the floor is paid the same no matter which brand you choose, the guidance you get stays 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.
