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Helix Dawn Mattress King Size - 11.5" Medium-Firm Memory Foam Hybrid with Cooling Gel, Edge Support, and Motion Isolation for Back Sleepers

4

1,358.00$

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  • Perfectly balanced medium-firm feel
  • Cooling cover for temperature regulation
  • Pressure-relieving foam for comfort
  • Durable support for restful sleep
  • King size for spacious sleeping

Pros

  • ✓Firm support ideal for back and stomach sleepers
  • ✓Cooling GlacioTex cover helps regulate temperature
  • ✓CertiPUR-US and GreenGuard Gold certified for safety

Cons

  • ✗Firmness may be too hard for side sleepers
  • ✗Limited review data available for performance verification
  • ✗Cooling cover is an upgrade, not standard

Category mattresses

Brand Helix

Helix Dawn Mattress, King King x 11.5"Th: Firm hybrid mattress with Review

The Helix Dawn Mattress is a firm hybrid mattress designed specifically for back and stomach sleepers. It combines responsive foam layers with pocketed coils to provide targeted support and pressure relief. The mattress features a cool-to-the-touch GlacioTex cover upgrade available for enhanced temperature regulation. Assembled in Arizona using coils and foams produced by Helix, it is CertiPUR-US and GreenGuard Gold certified with zero fiberglass. This mattress-in-a-box offers a balance of firm support and cooling comfort for those who prefer a firmer sleep surface.

Product Overview

The Helix Dawn Mattress measures 80 inches long by 76 inches wide with an 11.5-inch thickness in the King size, weighing 120 pounds. It features a two-layer construction with a comfort foam top layer and pocketed coil support system. The cover is made from GlacioTex material, designed to feel cool to the touch and available as an upgrade option. This mattress is tailored for back and stomach sleepers, providing firm support that helps maintain spinal alignment and reduce pressure points. Care instructions include vacuuming the surface and spot-cleaning the cover without removal. The mattress arrives compressed in a box for easy setup and is suitable for unisex adult use. It is constructed with materials certified for low emissions and safety.

Key Features

Firm hybrid construction

  • ✓Combines responsive foam with pocketed coils for targeted support
  • ✓Designed specifically for back and stomach sleepers
  • ✓Provides pressure relief while maintaining spinal alignment

Cooling GlacioTex cover

  • ✓Cool-to-the-touch material helps regulate temperature
  • ✓Available as an upgrade option for enhanced comfort
  • ✓Reduces heat retention during sleep

Certified safe materials

  • ✓CertiPUR-US certified foams ensure low VOC emissions
  • ✓GreenGuard Gold certified for indoor air quality
  • ✓Contains zero fiberglass for safety

Mattress-in-a-box delivery

  • ✓Arrives compressed in a box for easy handling
  • ✓Simplifies setup and placement in any room
  • ✓Expands to full size after unboxing

Durable pocketed coil system

  • ✓Pocketed coils provide responsive support and motion isolation
  • ✓Coils are produced by Helix in their Arizona factory
  • ✓Enhances durability and long-term performance

Easy maintenance care

  • ✓Vacuum the surface regularly to keep clean
  • ✓Spot-clean the cover if needed without removal
  • ✓Simple care routine maintains mattress hygiene

Targeted sleep benefits

  • ✓Designed to support back pain relief and posture
  • ✓Helps improve sleep quality through pressure relief
  • ✓Tailored for unisex adult use across age ranges

American-made construction

  • ✓Assembled in Helix's Arizona factory with proprietary materials
  • ✓Uses coils and foams produced in-house for quality control
  • ✓Supports domestic manufacturing standards

Design & Build

The Helix Dawn Mattress features a 11.5-inch thick hybrid design with two primary layers. The top layer consists of comfort foam that provides responsive cushioning, while the base layer uses pocketed coils for support. This construction is specifically engineered for back and stomach sleepers, offering firmness that helps maintain proper spinal alignment. The cover is made from GlacioTex material, which feels cool to the touch and is available as an upgrade to enhance temperature regulation. The mattress is assembled in Helix's Arizona factory using coils and foams they produce, ensuring quality control and consistency.

Care and maintenance are straightforward with instructions to vacuum the surface and spot-clean the cover without removal. The mattress arrives in a box, compressed for easy delivery and setup. It expands to its full dimensions of 80 by 76 inches once unboxed. The materials are CertiPUR-US and GreenGuard Gold certified, indicating low emissions and no fiberglass. This design prioritizes durability, safety, and ease of use, making it suitable for long-term bedroom use.

Performance

The Helix Dawn Mattress delivers firm support tailored for back and stomach sleepers. The combination of comfort foam and pocketed coils provides responsive pressure relief, helping to reduce discomfort and improve sleep posture. The GlacioTex cover contributes to cooling performance by dissipating heat, which can enhance comfort for those who sleep warm. The pocketed coil system offers motion isolation, minimizing disturbances from partner movement. This mattress is designed to support back pain relief and posture alignment through its firm construction.

As a mattress-in-a-box, it performs well in terms of setup convenience, expanding to full size after unboxing. The materials are durable and certified for low emissions, ensuring safe indoor air quality. The firmness level is consistent, providing stable support over time. While specific temperature retention claims are not detailed, the cooling cover upgrade aims to address heat regulation. The mattress maintains its shape and support with proper care, making it a reliable option for those seeking a firm hybrid sleep surface.

Pros and Cons

Pros

  • ✓Firm support ideal for back and stomach sleepers
  • ✓Cooling GlacioTex cover helps regulate temperature
  • ✓CertiPUR-US and GreenGuard Gold certified for safety
  • ✓Mattress-in-a-box design for easy delivery and setup
  • ✓Pocketed coils provide motion isolation and durability
  • ✓American-made with quality-controlled materials
  • ✓Zero fiberglass construction enhances safety
  • ✓Easy maintenance with vacuum and spot-cleaning
  • ✓Targeted pressure relief for improved sleep quality
  • ✓Supports spinal alignment and posture

Cons

  • ✗Firmness may be too hard for side sleepers
  • ✗Limited review data available for performance verification
  • ✗Cooling cover is an upgrade, not standard
  • ✗Heavy weight at 120 pounds makes moving difficult
  • ✗May require a break-in period for optimal comfort
  • ✗No detailed temperature retention specifications provided
  • ✗King size may not fit all bed frames or rooms
  • ✗Spot-cleaning only for cover limits deep cleaning options
  • ✗Higher price point compared to some alternatives
  • ✗Limited color or design variations available

Written by Sleep Mattress Guide Editorial Team. We research mattress specs, aggregate verified customer reviews, and distill it into clear buying advice.

(4) Comments

Perfect for my back pain
As a back sleeper, this mattress is a dream. The medium-firm support is exactly what I needed, and I wake up without any stiffness. The cooling cover really works, too—no more waking up sweaty. Worth every penny.
Solid mattress, delivery was fine
The mattress is comfortable and the king size gives us plenty of room. It feels high quality. Delivery was straightforward, though the box was heavy. It's a bit pricey, but seems durable so far.
Good, not great
It's comfortable and the motion isolation is decent, but my partner still feels some movement. The edge support is okay, but I wish it was firmer when sitting on the side. For the price, I expected a bit more.
Excellent quality and easy setup
Unboxing was simple and it expanded quickly. The fabric looks premium and the foam provides great pressure relief. Very happy with this purchase—sleeps cool and feels supportive.

Product Specifications

Brand Helix
Model Name Dawn
Size King
Item Dimensions (L × W × Thickness) 80"L × 76"W × 11.5"Th
Item Weight 120 Pounds
Number of Layers 2
Mattress Coil Type Pocketed Coil
Construction Type Pocket Spring
Cover Material GlacioTex
Fill Material Coils and foam
Mattress Comfort Layer Material Comfort Foam
Material Type GlacioTex Cooling Pillow Top
Item Firmness Description Firm
Product Benefits Back Pain Relief, Posture Support, Improves Sleep, Pressure Relief
Age Range Description Unisex Adult
Product Care Instructions Vacuum the surface of the mattress; spot-clean the cover if needed, but do not remove it
Additional Features Mattress in a box
Certifications CertiPUR-US and GreenGuard Gold certified, zero fiberglass

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