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Firm
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On Sale
Mancini's Sleepworld Granite Bay Firm Mattress 13"-Cal King
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In Stock
Mancini's Sleepworld Granite Bay Firm Mattress 13"
Why this Mattress?
- Graphite, copper, and titanium memory foam keep you sleeping cool
- Firm support lifts the lumbar and stops morning stiffness
- "Cold" stretch knit cover pulls heat away from the body
- Dense base foam holds its shape year after year
- 13 inches of layered foam built for back pain relief
Overview
Mancini's Sleepworld Granite Bay Firm Mattress 13" · Cal King
The Mancini's Sleepworld Granite Bay Firm Mattress 13" is a firm mattress built for back sleepers and anyone who wakes up stiff and achy despite a full night in bed. The support core is arranged with ultra high density memory foam layers infused with graphite, copper, and titanium, each one working to draw heat away from the body while keeping the spine lifted through the night. This is a firm mattress for back pain relief with the kind of structured feel that keeps you on top of the mattress rather than sinking into it. When you stop by any Mancini's Sleepworld location, our sleep specialists will lay this next to every competing option so you can feel the difference for yourself.
COMFORT AND FEEL: Firm and flat with controlled memory foam contouring that supports without swallowing you.
SIZE: This Cal King sized mattress is built for couples or solo sleepers who need the full 72 by 84 inches to move freely through the night.
BEST SLEEP MATCH: Best for back sleepers and stomach sleepers who want a firm mattress for back sleepers that holds the spine neutral. The structured feel prevents the hips from dropping and keeps the lower back in line all night.
BEST FOR: Ideal for sleepers who run warm, deal with lower back tension, or need a mattress that won't soften out after the first year.
CONSTRUCTION SPECIFICATIONS: The stretch knit cover is built cold, meaning it actively moves heat before it can build up. Graphite, copper, and titanium are worked into the memory foam layers above, each adding a separate pathway for heat to leave the sleep surface. The ultra high density foam beneath provides the firm, grounded feel. A super high density base keeps everything from compressing unevenly over time.
SETUP AND COMPATIBILITY: Compatible with adjustable bases, platform frames, and box springs. Delivered flat with professional in-home setup available, no tools needed on your end.
NOT A FIT FOR: Side sleepers who need deep hip and shoulder cushioning may find this too firm. Not the right match for sleepers who prefer a plush or pillow-top feel.
YOUR SLEEP, BACKED BY US
Every mattress purchase at Mancini's Sleepworld comes with a 120-night comfort guarantee as part of our Rest Easy Promise, along with our Best Price Guarantee, free next-day delivery, and flexible financing options. Add a premium mattress protector at the time of purchase and you can choose to extend that guarantee to a full 365 nights. Come try this one in any Mancini's Sleepworld showroom before you commit. Our sleep specialists are there to help you get it right.
- SleepMatch: blue
Rest Easy Promise
Our promise to you.
- 365-Night Comfort Guarantee with purchase of a premium mattress protector
- Best Price Guarantee Find it lower and we’ll match it.
- Free Next-Day Delivery We’ll deliver to your door, set-up available.
- Double-Your-Warranty We match the manufacturer’s warranty.
Features
- SKU: BRK-GRA-6M-FM-25
- MPN: 25WI13ALPMF_FP67
- GTIN: 810191940883
- Brand: Mancini's
- Collection: Sleepworld
- Type: Foam
- Mattress In A Box: No
- Firmness: Firm
- Height: 13
- Length: 84
- Width: 72
- Shipping Height: 13
- Shipping Width: 84
- Shipping Length: 72
- 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