• Medium Euro-Top
  • On Sale
  • Suitable For Adjustable Base
  • Motion Separation
  • Cooling Technology
  • Edge Support
  • Hand Crafted

Overview

Helix Core Midnight Medium Euro-Top Mattress 12.5" CalKing

⭐⭐⭐ 3.1 · verified sleepers

The Helix Core Midnight Medium Euro-Top Mattress 12.5" is a hybrid mattress built for side sleepers and combination sleepers who want genuine pressure relief without sacrificing support. Helix's award-winning Midnight is their most popular medium-feel model, and the Core version delivers that signature feel at an accessible price point. The GlacioTex™ Cooling Cover draws warmth away from the surface so the bed feels crisp when you get in, not just cool on paper. Stop by any Mancini's Sleepworld location and our sleep specialists will put this next to competing options so you can feel the difference for yourself.

COMFORT AND FEEL: Medium feel with a memory foam contour that cushions pressure points while the coil base holds the spine in place.

SIZE: This Cal King sized mattress is 72 by 84 inches, giving taller sleepers and couples who share their space with a pet plenty of room to spread out comfortably.

BEST SLEEP MATCH: Best for side sleepers and back sleepers. The medium feel lets the hips and shoulders sink just enough to release pressure while the coil core keeps the lumbar from dropping.

BEST FOR: Ideal for sleepers who toss and turn, need hip and shoulder pressure relief, or want motion isolation so a restless partner doesn't disrupt their sleep.

CONSTRUCTION SPECIFICATIONS: The GlacioTex™ Cooling Cover draws heat away from the surface for a cool-to-the-touch feel. Gel Memory Foam beneath it cradles the hips and shoulders with medium pressure relief. Responsive Foam layers contour the body and define the medium feel. Hundreds of individually wrapped steel coils cradle the body and limit motion transfer. DuraDense Foam at the base secures the foundation and supports every layer above it.

SETUP AND COMPATIBILITY: Arrives rolled and compressed in a box, expands within hours, no tools needed. Compatible with adjustable bases, platform frames, and slatted foundations.

NOT A FIT FOR: Stomach sleepers who need firm lift under the hips, or sleepers over 230 pounds who require a more supportive coil system.

YOUR SLEEP, BACKED BY US

At Mancini's Sleepworld, every mattress purchase is backed by the Rest Easy Promise, which includes a 120-night comfort guarantee, free next-day delivery, in-home professional setup, flexible financing, and a Best Price Guarantee. Add a premium mattress protector at the time of purchase and you can upgrade your guarantee to a full 365 nights. Come try this mattress in any of our stores before you buy, and our sleep specialists will make sure you leave confident.

  • 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

Helix Core Midnight Medium Euro-Top Mattress 12.5"

Price reduced from MSRP  $2,235.00 to Save 25% $1,676.00
Total $1,676.00
Item No. BRK-HLX-COR-GTC-MID-6M-MET-25
  • GlacioTex™ cooling cover pulls heat away from the surface
  • Memory foam contours hips and shoulders for pressure relief
  • Individually wrapped coils absorb motion without disturbing a partner
  • Reinforced lengthwise edge support extends the usable sleep surface
  • DuraDense Foam base keeps the mattress stable year after year
Availability:
  • In Stock
Total $1,676.00

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Overview

Helix Core Midnight Medium Euro-Top Mattress 12.5" CalKing

⭐⭐⭐ 3.1 · verified sleepers

The Helix Core Midnight Medium Euro-Top Mattress 12.5" is a hybrid mattress built for side sleepers and combination sleepers who want genuine pressure relief without sacrificing support. Helix's award-winning Midnight is their most popular medium-feel model, and the Core version delivers that signature feel at an accessible price point. The GlacioTex™ Cooling Cover draws warmth away from the surface so the bed feels crisp when you get in, not just cool on paper. Stop by any Mancini's Sleepworld location and our sleep specialists will put this next to competing options so you can feel the difference for yourself.

COMFORT AND FEEL: Medium feel with a memory foam contour that cushions pressure points while the coil base holds the spine in place.

SIZE: This Cal King sized mattress is 72 by 84 inches, giving taller sleepers and couples who share their space with a pet plenty of room to spread out comfortably.

BEST SLEEP MATCH: Best for side sleepers and back sleepers. The medium feel lets the hips and shoulders sink just enough to release pressure while the coil core keeps the lumbar from dropping.

BEST FOR: Ideal for sleepers who toss and turn, need hip and shoulder pressure relief, or want motion isolation so a restless partner doesn't disrupt their sleep.

CONSTRUCTION SPECIFICATIONS: The GlacioTex™ Cooling Cover draws heat away from the surface for a cool-to-the-touch feel. Gel Memory Foam beneath it cradles the hips and shoulders with medium pressure relief. Responsive Foam layers contour the body and define the medium feel. Hundreds of individually wrapped steel coils cradle the body and limit motion transfer. DuraDense Foam at the base secures the foundation and supports every layer above it.

SETUP AND COMPATIBILITY: Arrives rolled and compressed in a box, expands within hours, no tools needed. Compatible with adjustable bases, platform frames, and slatted foundations.

NOT A FIT FOR: Stomach sleepers who need firm lift under the hips, or sleepers over 230 pounds who require a more supportive coil system.

YOUR SLEEP, BACKED BY US

At Mancini's Sleepworld, every mattress purchase is backed by the Rest Easy Promise, which includes a 120-night comfort guarantee, free next-day delivery, in-home professional setup, flexible financing, and a Best Price Guarantee. Add a premium mattress protector at the time of purchase and you can upgrade your guarantee to a full 365 nights. Come try this mattress in any of our stores before you buy, and our sleep specialists will make sure you leave confident.

Features

  • Suitable For Adjustable Base
  • Motion Separation
  • Cooling Technology
  • Edge Support
  • Hand Crafted
  • 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
Helix Core Midnight Medium Euro-Top Mattress 12.5" image number

Helix Core Midnight Medium Euro-Top Mattress 12.5"

Price reduced from MSRP  $2,235.00 to Save 25% $1,676.00
Price reduced from MSRP  $2,235.00 to Save 25% $1,676.00
Cal King

  • Premium quilted top made of GlacioTex™ fabric with cutting-edge cooling technology.
  • Medium pressure relieving Gel Memory Foam that cradles your hips & shoulders.
  • Responsive Foam designed to cradle & contour your body for optimal support & comfort with a medium firmness.
  • Hundreds of steel coils cradle your body while limiting motion transfer. Reinforced lengthwise edge support.
  • DuraDense Foam provides base support & durability to the entire mattress.
  • Helix Core Midnight Medium Euro-Top Mattress 12.5" The Midnight is Helix’s award winning medium-feel hybrid mattress, designed with excellent contouring memory foam to provide pressure relief at your hips and shoulders.
  • Helix Core Midnight Medium Euro-Top Mattress 12.5" It features 3 layers of high-density foam and hundreds of individually wrapped steel coils, including reinforced edge support, for excellent motion isolation and durability.

Features

  • SKU: BRK-HLX-COR-GTC-MID-6M-MET-25
  • MPN: HEXSMIC67
  • GTIN: 810042456044
  • Brand: Helix
  • Collection: Core
  • Type: Hybrid
  • Mattress In A Box: Yes
  • Firmness: Medium Euro-Top
  • Height: 12.5
  • Length: 84
  • Width: 72
  • Shipping Height: 16
  • Shipping Width: 47
  • Shipping Length: 16
  • Warranty: Limited Lifetime
  • Weight Capacity: 1000
  • Cover Material: GlacioTex™ Cooling Polyethelene
  • Quilting Layers: Responsive Polyfoam, Gel Memory Foam
  • Comfort Layers: Gel Memory Foam, Responsive Polyfoam
  • Support System: 1024 Coils, Side Edge Support

Specification

  • Suitable For Adjustable Base: Yes
  • Motion Separation: Yes
  • Cooling Technology: Yes
  • Edge Support: Yes
  • Hand Crafted: Yes