• Extra Firm
  • On Sale

Why this Mattress?

  • Extra firm memory foam built for serious back support
  • Graphite, copper, and titanium work to pull heat away
  • Super Heavy Weight "Cold" knit cover sleeps noticeably cooler
  • Dense foam layers hold their shape year after year
  • Flat, unyielding surface keeps the spine in line all night
Mancini's

Mancini's Sleepworld Granite Bay Extra Firm Mattress 13"-Eastern King

Item No. BRK-GRA-E6M-XF-25
Delivery by Aug 02 to 94550
Price reduced from MSRP  $2,469.99 to Save 23% $1,899.99

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 $1,899.99
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Mancini's Sleepworld Granite Bay Extra Firm Mattress 13"

Price reduced from MSRP  $2,469.99 to Save 23% $1,899.99
Price reduced from MSRP  $2,469.99 to Save 23% $1,899.99

Why this Mattress?

  • Extra firm memory foam built for serious back support
  • Graphite, copper, and titanium work to pull heat away
  • Super Heavy Weight "Cold" knit cover sleeps noticeably cooler
  • Dense foam layers hold their shape year after year
  • Flat, unyielding surface keeps the spine in line all night

Overview

Mancini's Sleepworld Granite Bay Extra Firm Mattress 13" · Eastern King

The Mancini's Sleepworld Granite Bay Extra Firm Mattress 13" is a foam mattress built for the sleeper who needs maximum support without any give. It starts with an extra firm memory foam mattress for back pain relief that keeps the lumbar lifted and the spine neutral whether you sleep on your back or stomach. Where a lot of foam beds soften out over time, the Granite Bay is constructed from the ground up with density and durability as the primary goals, so the support you feel on night one is the support you can count on years later. Stop by any Mancini's Sleepworld location and our sleep specialists will lay this out next to every competing option so you can feel the difference before you commit.

COMFORT AND FEEL: Extra firm and flat with deep-density foam that pushes back rather than conforms.

SIZE: This Eastern King sized mattress is a 76" x 80" stretch of real estate built for stomach sleepers, back sleepers, or couples who each want their own side and zero sinkage.

BEST SLEEP MATCH: Stomach and back sleepers who need an extra firm mattress will find the Granite Bay keeps the hips level and the lower back lifted, which is exactly what those positions demand.

BEST FOR: Ideal for sleepers who need maximum lumbar support, run warm overnight, or have been sinking too deep into their current mattress.

CONSTRUCTION SPECIFICATIONS: The Super Heavy Weight "Cold" stretch knit cover is engineered to regulate temperature from the first touch. Beneath it, Ultra High Density memory foam infused with Graphite, Copper, and Titanium draws heat away and resists body impressions. The Super High Density foam core underneath holds the entire structure firm and resistant to early softening.

SETUP AND COMPATIBILITY: Compatible with adjustable bases, platform frames, and traditional box springs. Delivered flat with in-home professional setup available at time of scheduling.

NOT A FIT FOR: Side sleepers who need hip and shoulder cushioning, or anyone who prefers even a moderate amount of contouring or pressure relief.

YOUR SLEEP, BACKED BY US

Every mattress purchased at Mancini's Sleepworld includes a 120-night comfort guarantee, our Best Price Guarantee, free next-day delivery, and flexible financing options. Want a full year to be certain? Add a premium mattress protector at checkout and your guarantee extends to 365 nights. Our sleep specialists are here in-store every day. Come try this mattress in person and feel it for yourself before you decide.

  • SleepMatch: red
A color code of red indicates that you need extra firm support. This is often true of some back sleepers and stomach sleepers. 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-E6M-XF-25
  • MPN: 25WI13ALPF_FP66
  • GTIN: 810191940814
  • Brand: Mancini's
  • Collection: Sleepworld
  • Type: Foam
  • Mattress In A Box: No
  • Firmness: Extra Firm
  • Height: 13
  • Length: 80
  • Width: 76
  • Shipping Height: 13
  • Shipping Width: 80
  • Shipping Length: 76
  • Warranty: 10 Year
  • Cover Material: Polyethylene & Poly Blend
  • Quilting Layers: Smooth Top
  • Comfort Layers: 1'' 4 / 13 Titanium M-Foam,2'' 3.6 / 22 Firm H.D M-Foam
  • Support System: 10.0 1.8 / 36 H.D Base Foam

Specification

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