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Firm
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On Sale
Casper Slate Firm Mattress 10.5"-Cal King
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In Stock
Casper Slate Firm Mattress 10.5"
Why this Mattress?
- Firm support keeps your spine aligned all night
- Breathe Flex Foam comfort layer bounces back fast
- Responsive feel relieves pressure without deep sink
- Stretch-knit cover moves with you, not against you
- Solid foam base resists sagging season after season
Overview
Casper Slate Firm Mattress 10.5" · Cal King
The Casper Slate Firm Mattress 10.5" is a foam mattress built for back and stomach sleepers who want real spinal support without a punishing, unyielding feel. It earns its place in the firm mattress for back pain relief conversation by pairing a responsive comfort layer with a dense, stable base that holds its shape night after night. The Slate keeps things honest: no unnecessary complexity, no gimmicks, just a well-constructed all-foam bed that does exactly what a firm mattress should. If you want to feel it in person next to every competing option before you decide, our sleep specialists at any Mancini's Sleepworld location are ready to walk you through it.
COMFORT AND FEEL: Firm feel with a quick-response top layer that cushions without cradling too deeply.
SIZE: This Cal King sized mattress is a generous fit for couples who sleep independently or tall sleepers who need full-length support.
BEST SLEEP MATCH: Best for back and stomach sleepers seeking a firm mattress for back sleepers. The firm feel keeps hips from dropping and the lumbar lifted, so you wake up without that familiar morning stiffness.
BEST FOR: Ideal for sleepers who need consistent spinal alignment, tend to sleep hot on denser foams, or wake up with lower back tension from a surface that's too soft.
CONSTRUCTION SPECIFICATIONS: The Breathe Flex Foam comfort layer is both responsive and breathable, giving you a light, quick feel at the surface. Beneath it, the firm Casper Core base holds the mattress structure steady so it won't soften out or sag under regular use. The stretch-knit cover flexes with your movements so nothing is muffled between you and the layers below.
SETUP AND COMPATIBILITY: The Slate arrives rolled and compressed in a box, expands within hours, and needs no tools. Compatible with adjustable bases, platform frames, and box springs.
NOT A FIT FOR: Dedicated side sleepers who need deep hip and shoulder cushioning may find this firmness level too unyielding. Not the best choice if you prefer a plush or pillow-top feel.
YOUR SLEEP, BACKED BY US
At Mancini's Sleepworld, our sleep specialists are here to help you get this decision right. Every mattress purchase includes a 120-night comfort guarantee and our Best Price Guarantee, so you know you're covered from day one. Add a premium mattress protector at the time of purchase and you can extend your guarantee to a full 365 nights. Come try the Slate in one of our stores, and take advantage of free next-day delivery, in-home professional setup, and flexible financing options.
- SleepMatch: red
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: CAS-SLA-6M-FM-24
- MPN: 950-000148-006
- GTIN: 192472031276
- Brand: Casper
- Collection: Slate
- Type: Memory Foam
- Mattress In A Box: Yes
- Firmness: Firm
- Height: 10.5
- Length: 84
- Width: 72
- Shipping Height: 42
- Shipping Width: 18.5
- Shipping Length: 18.5
- Warranty: 10 Year Limited
- Weight Capacity: 600
- Cover Material: 98% Polyester, 2% Spandex
- Quilting Layers: Convetional Foam
- Comfort Layers: Latex Foam
- Support System: Conventional Foam
Specification
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Suitable For Adjustable Base: Yes
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Motion Separation: Yes
Related Products
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On Sale
- Delivery by Jul 11