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Firm
Beautyrest Black Series Three Firm Mattress 15"-Split Cal King
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In Stock
Why this Mattress?
- Firm mattress for back pain relief with all-night heat transfer
- Triple-Stranded Pocketed Coil® keeps your spine lifted and still
- Micro Diamond™ Memory Foam draws heat away as you sleep
- Self-Response™ Latex cushions pressure points without trapping warmth
- Sleep Climate™ Technology moves heat away from your body all night
Overview
Beautyrest Black® Series Three Firm Mattress 15" Split Cal King
The Beautyrest Black® Series Three Firm Mattress is a luxury innerspring mattress built for back and stomach sleepers who need solid, stable support without sacrificing refined comfort at the surface. It carries everything from the Series One and Series Two builds, then adds conforming support through its coil-within-coil construction, giving this firm feel more body-responsive detail than a traditional innerspring. The Micro Diamond™ Memory Foam layer pulls heat away from the body throughout the night, so the feel stays cool and consistent from the first hour to the last. Stop by any Mancini's Sleepworld location and our sleep specialists will put this next to every competing option so you can feel the difference for yourself.
COMFORT AND FEEL: Firm feel with responsive surface cushioning and stable lumbar support.
SIZE: This Split Cal King sized mattress is designed for couples who want separate sleep zones in a sprawling long-bedroom layout.
BEST SLEEP MATCH: Best for back and stomach sleepers who prefer a firm mattress for back pain relief. The firm feel keeps the hips from sinking, which helps the spine stay long and neutral through the night.
BEST FOR: Ideal for sleepers who run warm, need lumbar and spinal alignment through the night, or share a bed and need motion kept to their side only.
CONSTRUCTION SPECIFICATIONS: The Triple-Stranded Pocketed Coil® Technology responds to each part of your body individually so movement on one side stays there. The Micro Diamond™ Memory Foam layer conducts heat away from the sleep surface so you feel cool, not just cooler. Sleep Climate™ Technology is woven into the surface itself, with cooling yarn sitting over a layer of vertical fibers that keep the transfer going all night. Self-Response™ Latex adds a ventilated layer that cushions pressure points while letting air move freely.
SETUP AND COMPATIBILITY: Delivered flat with in-home professional setup included. Compatible with a box spring, platform frame, or adjustable base.
NOT A FIT FOR: Not suited for side sleepers who need deep hip and shoulder cushioning, or anyone who prefers a plush or pillow-top feel.
YOUR SLEEP, BACKED BY US
At Mancini's Sleepworld, every mattress purchase comes backed by our Rest Easy Promise. You're covered by a 120-night comfort guarantee from day one. Add a premium mattress protector at time of purchase and you can choose to extend that to a full 365 nights. You also get our Best Price Guarantee, free next-day delivery, in-home professional setup, and flexible financing. Come try this mattress in one of our stores before you decide.
- 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: SIM-SE3-6SM-FM-24
- MPN: 700812167-1071
- GTIN: 889152657801
- Brand: Beautyrest
- Collection: Black
- Type: Innerspring
- Mattress In A Box: No
- Firmness: Firm
- Height: 15
- Length: 83.5
- Width: 36
- Shipping Height: 15
- Shipping Width: 72
- Shipping Length: 84
- Warranty: 10-Year Limited
- Cover Material: Polyester / Polyamide blend
- Quilting Layers: Sleep Climate™ Technology
- Comfort Layers: SurfaceTouch™ Gel Memory Foam, SurfaceTouch™ Gel Memory Foam, AirCool® HD Foam, Micro Diamond™ Memory Foam, HD Firm Comfort Foam, Self-Response™ Latex
- Support System: Triple-Stranded Pocketed Coil®, Medium Comfort Foam Base Layer, BeautyEdge® encasement support
Specification
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Suitable For Adjustable Base: Yes
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Motion Separation: Yes
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Cooling Technology: Yes
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Edge Support: Yes
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