• Medium
  • On Sale

Why this Mattress?

  • Built to sleep cooler without trading away support
  • Graphite, copper, and titanium memory foam eases pressure
  • Medium feel holds the spine without locking you in place
  • Dense base foam resists softening over years of use
  • 13 inches of layered construction for lasting cushion depth
Mancini's

Mancini's Sleepworld Granite Bay Medium Mattress 13"-Split Cal King

Item No. BRK-GRA-6SM-MED-25
Delivery by Aug 25 to 94550
Price reduced from MSRP  $1,819.99 to Save 23% $1,399.99

Twin 38″ x 75″
Price reduced from MSRP  $1,689.99 to Save 23% $1,299.99
Twin XL 38″ x 80″
Price reduced from MSRP  $1,819.99 to Save 23% $1,399.99
Full 54″ x 75″
Price reduced from MSRP  $1,949.99 to Save 23% $1,499.99
Cal King 72″ x 84″
Price reduced from MSRP  $2,469.99 to Save 23% $1,899.99
Split Cal King 39″ x 80″
Price reduced from MSRP  $1,819.99 to Save 23% $1,399.99
Eastern King 76″ x 80″
Price reduced from MSRP  $2,469.99 to Save 23% $1,899.99
Queen 60″ x 80″
Price reduced from MSRP  $2,079.99 to Save 23% $1,599.99
Availability:
  • In Stock
Total $1,399.99
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Mancini's Sleepworld Granite Bay Medium Mattress 13"

Price reduced from MSRP  $1,819.99 to Save 23% $1,399.99
Price reduced from MSRP  $1,819.99 to Save 23% $1,399.99

Why this Mattress?

  • Built to sleep cooler without trading away support
  • Graphite, copper, and titanium memory foam eases pressure
  • Medium feel holds the spine without locking you in place
  • Dense base foam resists softening over years of use
  • 13 inches of layered construction for lasting cushion depth

Overview

Mancini's Sleepworld Granite Bay Medium Mattress 13" · Split Cal King

The Mancini's Sleepworld Granite Bay Medium Mattress 13" is a foam mattress built for the sleeper who runs warm and wakes up stiff. If you've been searching for the best mattress for pressure point relief in a split cal king, this is where that search lands. The Alpine Medium Soft support core layers Ultra High Density memory foam above a Super High Density base, giving you a feel that cushions without collapsing. Stop by any Mancini's Sleepworld location and let one of our sleep specialists put this next to the competition so you can feel the difference yourself.

COMFORT AND FEEL: Medium soft with a slow, contouring response that lifts the lumbar without pushing back hard.

SIZE: This split cal king sized mattress is built for couples who want individual climate and comfort control across a full 84-inch length.

BEST SLEEP MATCH: Back sleepers and side sleepers both land well on this medium foam hybrid. The soft memory foam cradles the hips while the firmer base keeps the spine from dipping.

BEST FOR: Ideal for sleepers who run warm at night, carry tension in the hips and shoulders, or need a split setup for adjustable base compatibility.

CONSTRUCTION SPECIFICATIONS: The Super Heavy Weight "Cold" stretch knit cover actively pulls heat away from the surface. Beneath it, memory foam infused with graphite, copper, and titanium absorbs and disperses body heat while contouring to pressure points. The Super High Density base foam underneath holds its shape so the comfort layers above don't bottom out early.

SETUP AND COMPATIBILITY: Works with adjustable bases, platform frames, and box springs. Delivered flat with in-home professional setup available.

NOT A FIT FOR: Stomach sleepers who need a very firm surface may find the Medium Soft feel allows too much sinkage around the midsection.

YOUR SLEEP, BACKED BY US

Every mattress purchase at Mancini's Sleepworld is backed by a 120-night comfort guarantee and our Rest Easy Promise. Come try it in any of our stores before you buy. We offer free next-day delivery, in-home professional setup, flexible financing, and our Best Price Guarantee. Add a premium mattress protector at time of purchase and you can upgrade your guarantee to a full 365 nights, giving you an entire year to be certain this is the right mattress for you.

  • SleepMatch: blue
Blue color code are mattresses of medium firm support. Most back sleepers and some side sleepers will find the beds measured as blue are best for them. Find Your Match
Couple relaxing on a mattress

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-6SM-MED-25
  • MPN: 25WI13ALPMF_FP36X84
  • GTIN: 810191944249
  • Brand: Mancini's
  • Collection: Sleepworld
  • Type: Foam
  • Mattress In A Box: No
  • Firmness: Medium
  • Height: 13
  • Length: 80
  • Width: 39
  • Shipping Height: 13
  • Shipping Width: 80
  • Shipping Length: 38
  • Warranty: 10 Year
  • Cover Material: Polyethylene & Poly Blend
  • Quilting Layers: Smooth Top
  • Comfort Layers: 1'' 4 / 13 Titanium M-Foam,2'' 3/10 titanium M -Foam
  • Support System: 3.0 1.8 / 18 transition over 7.0 1.8 / 36 H.D Base Foam

Specification

  • Suitable For Adjustable Base: Yes
  • Motion Separation: Yes