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Luxury Firm
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On Sale
Mancini's Sleepworld Diamond Luxury Firm Mattress 11.5"-Split Cal King
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In Stock
Mancini's Sleepworld Diamond Luxury Firm Mattress 11.5"
Why this Mattress?
- Built for the sleeper who wants real lumbar support without sacrificing that first-night give.
- Pocketed coil system moves independently to absorb partner motion.
- Quilted knit top cushions pressure points as you settle in.
- Reinforced edge lets you use every inch of the mattress.
- Adjustable base compatible right out of the box.
Overview
Mancini's Sleepworld Diamond Luxury Firm Mattress 11.5" | Split Cal King
The Mancini's Sleepworld Diamond Luxury Firm Mattress 11.5" is an innerspring mattress built for back sleepers and combination sleepers who need consistent spinal support night after night. A firm mattress for back pain relief that does not sacrifice surface comfort, the Diamond pairs a responsive coil core with quilted comfort layers that take the edge off without ever going soft beneath the hips. The result is a mattress that holds its shape year after year, not just through the first season. When you are ready to feel the difference between this and every competing option on the floor, our sleep specialists at Mancini's Sleepworld are standing by to put them side by side for you.
COMFORT AND FEEL: Luxury firm feel with gentle quilt cushioning and steady underlying support.
SIZE: This Split Cal King sized mattress is purpose-built for couples using adjustable bases who want independent sleep positions without compromising personal space.
BEST SLEEP MATCH: Back sleepers and combination sleepers will find this luxury firm innerspring keeps the spine level through position changes, with just enough give at the shoulders to stay comfortable through the night.
BEST FOR: Ideal for sleepers who wake up with lower back tension, need motion separation from a partner, or want a mattress that holds its support long term.
CONSTRUCTION SPECIFICATIONS: The 4-way stretch polyester knit cover flexes with your body as you move. A 1.5" layer of super soft quilt foam takes immediate pressure off the shoulders and hips. The 1.5" medium firm H.D. comfort layer below supports the lumbar without pushing back. An 8" 790 pocketed coil system isolates motion and maintains even support across the sleep surface. A 3/4" shock-absorbing H.D. base layer anchors everything so the mattress stays consistent for years.
SETUP AND COMPATIBILITY: Delivered flat with in-home professional setup available. Compatible with adjustable bases, platform frames, and standard box springs. No tools needed for setup.
NOT A FIT FOR: Sleepers who prefer a plush or pillow-top feel may find the luxury firm surface too close to the ground. Strict side sleepers needing deep hip contouring may want a softer option.
YOUR SLEEP, BACKED BY US
Every mattress at Mancini's Sleepworld comes with a 120-night comfort guarantee and our Rest Easy Promise, so you have real time to know this is the right bed. Add a premium mattress protector at purchase and you can extend that to a full 365 nights, giving yourself an entire year of certainty. You also get our Best Price Guarantee, free next-day delivery, flexible financing, and the option to try before you buy in any of our stores. Our sleep specialists are here 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-DIA-6SM-LF-25
- MPN: 25WICOTM_FP36X84
- GTIN: 810146418863
- Brand: Mancini's
- Collection: Sleepworld
- Type: Innerspring
- Mattress In A Box: No
- Firmness: Luxury Firm
- Height: 11.5
- Length: 80
- Width: 36
- Shipping Height: 11.5
- Shipping Width: 80
- Shipping Length: 38
- Warranty: 16 Year
- Cover Material: Polyester Knit
- Quilting Layers: 1 1/2'' Super Soft Quilt Foam
- Comfort Layers: 1 1/2'' Medium Firm Comfort H.D. Foam
- Support System: 8'' 790 Pocketed coil, 3/4'' Shock Absorbing H.D. Base Foam
Specification
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Suitable For Adjustable Base: Yes
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Motion Separation: Yes
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Edge Support: Yes