Helix | twilight w/ GlacioTex Pillow Top | 11.5 King Mattress

Gently- Used: This mattress has little to no wear and tear, has been cleaned and sanitized, and will be great for many years to come. 

Summary

The Helix Twilight with GlacioTex Pillow Top (11.5″ King) is a premium hybrid mattress offering firm support and a cooling upgrade, designed largely for side sleepers who want strong support with memory foam comfort. The key differentiators are its firm feel, zoned coil support, and the optional GlacioTex cooling cover. If you are a side or combination sleeper who wants a balance of contour + support and runs warm, this model is a strong contender. If you want something much softer, you might look at Helix’s “Midnight” or “Dusk” lines instead.

Key Specifications

• Size: King (76″ × 80″) and 11.5″ height in the “Core” version; the “Luxe” version goes up to about 13.5″.

• Feel / Firmness: Firm. The model is marketed for side sleepers and those who toss and turn, delivering strong support and pressure‑relief at shoulders and hips. 

• Type: Hybrid mattress — memory foam / responsive foams above, with a support core of individually wrapped steel coils.

• Cover option: Includes the premium “GlacioTex™ Cooling Cover” upgrade (Pillow Top version) which adds luxury and enhanced cooling

• Construction & Materials

  • Cover: A Pillow Top quilted surface with choice of ultra‑breathable TENCEL® cover or the GlacioTex™ Cooling Cover—designed to feel cool to the touch and pull heat away from your body. 

  • Comfort / Transition Layers (may vary slightly by version):

    • Memory Gel Foam or Memory Plus Foam layer for pressure relief. 

    • Responsive Foam layers designed to cradle body shape and protect against too much sink. 

  • Support Core:

    • Zoned individually wrapped coils (often ~8″ of pocketed coils) for support, motion isolation, and durability. Some versions include lumbar‑zoning (firmer under hips) and edge reinforcement. 

  • Base Layer: High‑density support foam layer under coils for stability and durability.

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  Performance & Features

  • The firm feel is somewhat unique: though designed for side sleepers, the Twilight model still emphasizes strong support (firm rating) with memory foam comfort layers. 

  • Cooling & breathability: With the GlacioTex cooling cover upgrade, the mattress offers a “cool‑to‑the‑touch” surface and enhanced heat dissipation. 

  • Pressure relief and spinal alignment: The comfort layers and zoned support core aim to reduce shoulder and hip pressure, and support the spine especially for side sleeping.

  • Edge support and motion isolation: The individually wrapped coils reduce partner movement and the reinforced perimeter helps maintain usable surface edge.

  • Made in USA: Helix assembles mattresses in Arizona.