• Luxury Firm
  • On Sale

Why this Mattress?

  • Built for back sleepers who want lift without stiffness
  • Gel-infused memory foam pulls heat away as you sleep
  • 840 pocketed coils respond individually to your body
  • HD transition foam keeps the lumbar zone stable all night
  • Breathable stretch-knit cover soft enough to feel from day one
Mancini's

Mancini's Sleepworld Harbor Hybrid Luxury Firm Mattress 10"-Eastern King

Item No. BRK-HAR-12-E6M-LF
Delivery by Jul 14
Price reduced from MSRP  $1,169.99 to Save 23% $899.99

Full 54″ x 75″
Price reduced from MSRP  $844.99 to Save 23% $649.99
Cal King 72″ x 84″
Price reduced from MSRP  $1,169.99 to Save 23% $899.99
Eastern King 76″ x 80″
Price reduced from MSRP  $1,169.99 to Save 23% $899.99
Twin 39″ x 75″
Price reduced from MSRP  $779.99 to Save 23% $599.99
Twin XL 39″ x 80″
Price reduced from MSRP  $805.99 to Save 23% $619.99
Queen 60″ x 80″
Price reduced from MSRP  $909.99 to Save 23% $699.99
Availability:
  • In Stock
Total $899.99
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Mancini's Sleepworld Harbor Hybrid Luxury Firm Mattress 10"

Price reduced from MSRP  $1,169.99 to Save 23% $899.99
Price reduced from MSRP  $1,169.99 to Save 23% $899.99

Why this Mattress?

  • Built for back sleepers who want lift without stiffness
  • Gel-infused memory foam pulls heat away as you sleep
  • 840 pocketed coils respond individually to your body
  • HD transition foam keeps the lumbar zone stable all night
  • Breathable stretch-knit cover soft enough to feel from day one

Overview

Mancini's Sleepworld Harbor Hybrid Luxury Firm Mattress 10" Eastern King

The Mancini's Sleepworld Harbor Hybrid Luxury Firm Mattress 10" is a hybrid mattress built for the sleeper who needs firm, reliable back support without waking up feeling locked in place. This is one of the best luxury hybrid mattresses in an Eastern King size for back sleepers who run warm and want a mattress that holds its shape year after year. The coil system works underneath you while the gel-infused memory foam layer handles the contouring, so you get genuine spinal alignment without the hard, flat feel of a traditional firm. 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: Luxury firm with a cool, lightly contouring surface that holds lumbar alignment without pushback.

SIZE: This Eastern King sized mattress is 76 by 80 inches, giving couples and solo sprawlers full room to move without running out of space.

BEST SLEEP MATCH: Best for back sleepers who prefer a luxury firm feel. The coil-and-foam hybrid keeps the spine neutral while the gel memory foam layer cushions hips and shoulders just enough to wake up without stiffness.

BEST FOR: Ideal for sleepers who run warm at night, need consistent back support, or have been waking up with that familiar morning stiffness in the lower back.

CONSTRUCTION SPECIFICATIONS: An 840-count pocketed coil unit forms the foundation, responding independently to movement across the bed. A 1.5" HD gel-infused memory foam layer sits above, drawing heat away and contouring to pressure points. HD transition foam bridges the two, keeping the support feeling stable rather than sudden. The stretch-knit cover is breathable and smooth against skin. All foam is CertiPUR-US® certified.

SETUP AND COMPATIBILITY: Works with an adjustable base, platform frame, or traditional box spring. Delivered flat with in-home professional setup available at time of purchase.

NOT A FIT FOR: Sleepers who prefer a plush or cradling feel may find the luxury firm surface too resistant. Not the best option for strict side sleepers with significant hip or shoulder pressure needs.

YOUR SLEEP, BACKED BY US

Every Harbor Hybrid purchase at Mancini's Sleepworld comes backed by the Rest Easy Promise, including a 120-night comfort guarantee, Best Price Guarantee, and free next-day delivery with in-home professional setup. Add a premium mattress protector at time of purchase and your guarantee extends to a full 365 nights. Flexible financing is available, and you can try this mattress in person at any Mancini's Sleepworld showroom before you decide.

  • 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-HAR-12-E6M-LF
  • MPN: HRBRSMTHY12_FP66
  • GTIN: 810191944638
  • Brand: Mancini's
  • Collection: Sleepworld
  • Type: Hybrid
  • Mattress In A Box: Yes
  • Firmness: Luxury Firm
  • Height: 10
  • Length: 80
  • Width: 76
  • Shipping Height: 12
  • Shipping Width: 80
  • Shipping Length: 76
  • Warranty: 10 Year
  • Cover Material: Polyester Knit
  • Quilting Layers: Smooth Top
  • Comfort Layers: 1.5'' - 2.5/10 Gel Infused Memory Foam, 1.5'' HD Transition Foam
  • Support System: 8'' 840 Pocketed coil, 1.5'' HD Gel infused Memory Foam, Over 1.5'' HD Transition Foam w/ 1'' Shock Absorbing H.D. Base Foam

Specification

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