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Firm
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On Sale
Overview
- SleepMatch: blue
Mancini's Sleepworld Granite Bay Firm Mattress 13"
- Graphite
- copper
- and titanium memory foam runs cooler|Firm support keeps the spine long and even all night|Heavy-weight cold-stretch cover wicks heat from first contact|Dense base foam holds its shape well past year one|Built for back sleepers who need real lumbar control
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Select Styles for Availability
Overview
Mancini's Sleepworld Granite Bay Firm Mattress 13" Queen
⭐⭐⭐⭐⭐ 5.0 · 1+ verified sleepers
The Mancini's Sleepworld Granite Bay Firm Mattress 13" is a firm mattress for back pain relief built for the sleeper who runs warm and wakes up stiff. Where most firm mattresses trade comfort for rigidity, this one layers ultra-high-density memory foam infused with graphite, copper, and titanium above a super-high-density base, so the surface absorbs just enough to take pressure off the hips while the foundation underneath keeps the lumbar lifted. The result is a mattress that earns its firmness rather than just announces it. Stop by any Mancini's Sleepworld location and our sleep specialists will put this next to every comparable option so you can feel exactly where it sits on the spectrum.
COMFORT AND FEEL: Firm feel with memory foam contouring that supports without letting the lower back sink.
SIZE: This queen sized mattress is a generous 60 by 80 inches, well-suited for couples or solo sleepers who want room to shift positions freely.
BEST SLEEP MATCH: Back sleepers and combination sleepers will feel most at home here. The firm mattress for back sleepers holds the spine level while the infused memory foam eases tension at the hips and shoulders between position changes.
BEST FOR: Ideal for sleepers who run hot, wake up with lower back tension, or need a firm surface that doesn't feel punishing by morning.
CONSTRUCTION SPECIFICATIONS: The cover is a super heavy-weight cold-stretch knit that draws heat away from the body on contact. Beneath it, ultra-high-density memory foam layers infused with graphite, copper, and titanium help dissipate warmth and contour to pressure points. A super-high-density base foam anchors everything, keeping the mattress from softening out over time.
SETUP AND COMPATIBILITY: Works with adjustable bases, platform frames, and box springs. Delivered flat with in-home professional setup included, no tools required on your end.
NOT A FIT FOR: Sleepers who prefer a plush or pressure-cradling feel will find this too firm. Not the best choice for strict side sleepers with sensitive shoulder or hip joints.
YOUR SLEEP, BACKED BY US
Every mattress at Mancini's Sleepworld comes with a 120-night comfort guarantee and the Rest Easy Promise, so you can sleep on this decision with confidence. Add a premium mattress protector at the time of purchase and you can choose to extend that to a full 365 nights. You also get free next-day delivery, in-home professional setup, flexible financing, and our Best Price Guarantee. Come try it in any of our stores before you commit.
Features
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Suitable For Adjustable Base
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Motion Separation
- SleepMatch: blue
Mancini's Sleepworld Granite Bay Firm Mattress 13"
Features
- SKU: BRK-GRA-5M-FM-25-config
- MPN: 25WI13ALPMF_FP50
- GTIN: 810191940869
- Brand: Mancini's
- Collection: Sleepworld
- Type: Foam
- Mattress In A Box: No
- Firmness: Firm
- Height: 13
- Length: 80
- Width: 60
- Shipping Height: 13
- Shipping Width: 80
- Shipping Length: 60
- Warranty: 10 Year
- Cover Material: Polyethylene & Poly Blend
- Quilting Layers: Smooth Top
- Comfort Layers: 1'' 4.0 / 13 Titanium M-Foam,2'' 3/10 titanium M -Foam
- Support System: 2.0 1.8 / 18 transition over 8.0 1.8 / 36 H.D Base Foam
Specification
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Suitable For Adjustable Base: Yes
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Motion Separation: Yes