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Firm
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On Sale
Overview
- SleepMatch: blue
Casper One Firm Mattress 11"
- Firm foam keeps your spine lifted all night
- Breathe Flex Foam™ top layer adds responsive bounce
- Align Memory Foam™ cradles hips and lower back
- Breathable foams pull heat away as you sleep
- Dense Casper Core base resists sinking for years
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In Stock
Overview
Casper One Firm Mattress 11" · Eastern King
The Casper One Firm Mattress 11" is an all-foam mattress built for back and stomach sleepers who want a firm mattress for back pain relief without sacrificing the pressure-point cushioning that keeps them comfortable until morning. Three purposefully layered foams work together to hold your lumbar in place and stop you from rolling into a posture that wakes you up stiff. The Casper One is the firmest model in the Casper lineup, and that firmness is intentional. Each layer is engineered for all-night breathability so the surface stays comfortable even when room temperatures climb. Stop by any Mancini's Sleepworld location and our sleep specialists can put this right next to other options so you can feel the difference for yourself.
COMFORT AND FEEL: Firm and responsive with an even, lifted support feel that resists deep sinkage.
SIZE: This Eastern King sized mattress is a generous fit for couples or solo sleepers who prefer maximum room to move during the night.
BEST SLEEP MATCH: Best for back and stomach sleepers who want a firm mattress for back sleepers. The firm, bounce-forward surface keeps hips and spine in line rather than letting them sink through.
BEST FOR: Ideal for sleepers who deal with lower back tension, need firm lumbar support throughout the night, or tend to run warm and overheat by morning.
CONSTRUCTION SPECIFICATIONS: The Breathe Flex Foam™ top layer is an open-cell foam that responds quickly and lets air move through as you shift. Below that, Align Memory Foam™ cradles your hips and lower back without the slow-sink feeling of traditional memory foam. The Casper Core base keeps the whole mattress from softening out or sagging over time. Foams meet CertiPUR-US® standards.
SETUP AND COMPATIBILITY: Arrives rolled and compressed in a box, expands within 24 hours, no tools needed. Compatible with platform frames, adjustable bases, and slatted foundations with slats no more than 4 inches apart.
NOT A FIT FOR: Dedicated side sleepers who need deep shoulder and hip cradling, or anyone who prefers the contouring sink of a plush or medium mattress.
YOUR SLEEP, BACKED BY US
Every mattress purchase at Mancini's Sleepworld comes backed by our Rest Easy Promise: a 120-night comfort guarantee, Best Price Guarantee, free next-day delivery with in-home professional setup, and flexible financing. Add a premium mattress protector at the time of purchase and you can choose to upgrade your guarantee to a full 365 nights. Want to feel this one before you buy? Come try it in any of our stores.
Features
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Suitable For Adjustable Base
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Motion Separation
- SleepMatch: blue
Casper One Firm Mattress 11"
Features
- SKU: CAS-ONE-E6M-FM-24
- MPN: 950-000151-005
- GTIN: 192472031382
- Brand: Casper
- Collection: One
- Type: Memory Foam
- Mattress In A Box: Yes
- Firmness: Firm
- Height: 11
- Length: 80
- Width: 76
- Shipping Height: 42
- Shipping Width: 17.5
- Shipping Length: 17.5
- Warranty: 10 Year Limited
- Weight Capacity: 600
- Cover Material: 98% Polyester, 2% Spandex
- Quilting Layers: Polyurethane Foam
- Comfort Layers: Polyurethane Foam
- Support System: Memory Foam
Specification
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Suitable For Adjustable Base: Yes
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Motion Separation: Yes
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