Helix | Luxe Twilight w/ GlacioTex Cooling | 13.5" 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

In summary, the Helix Twilight Luxe 13.5″ King mattress is a premium hybrid build that offers strong support, firm feel, and added luxury features like a pillow‑top and optional cooling cover. It’s particularly suited for sleepers who want high performance, especially if they tend to switch positions or share a bed. If you lean toward a very soft or plush feel, however, you might want to compare to one of Helix’s softer models (e.g., “Midnight” or “Sunset”) instead.

Key Specifications

• Size: King — 76″ W × 80″ L × ~13.5″ H (Luxe version)

• Feel / Firmness: Firm feel (typically listed around an 8/10 on the firmness scale) — although tailored for side‐sleepers who prefer strong support.

• Mattress Type: Hybrid mattress (comfort foam layers over an individually wrapped coil support core) 

• Cover / Top Option: Comes standard with a premium pillow‐top; cover options include a breathable TENCEL™ cover or a premium “GlacioTex™ Cooling Cover” upgrade for a cooler sleep surface. 

Construction & Materials

• Cover & Pillow‐Top: The Luxe version features a quilted pillow top for added comfort. The cover can be selected in TENCEL™ (a breathable, moisture‐wicking fabric) or upgraded to GlacioTex™ Cooling Cover which is engineered to feel cool to the touch. 

• Comfort / Foam Layers:

  • Multiple high‐density foam layers (e.g., Gel Memory Foam, Memory Plus Foam, Helix Responsive Foam) designed to deliver firm support yet alleviate pressure on shoulders and hips. 

  • Transition layer(s) of firm foam to ease transition into the support core. 

• Support Core:

  • Up to ~1,000 individually wrapped coils (depending on size) with zoned lumbar support — firmer under hips/middle, more contouring elsewhere. 

  • Reinforced perimeter edge support for structural stability.

• Base Layer: A dense foam base under the coil system for durability and support. 

Performance & Features

• Firm Support + Pressure Relief: Although labelled “firm,” this mattress is designed particularly for side sleepers who still need strong support — helping maintain spinal alignment and reduce “sink” especially at hips/shoulders. 

• Cooling & Breathability: The optional GlacioTex™ cover enhances temperature regulation by pulling heat away from the body. The coil support core also promotes airflow. 

• Edge Support & Motion Isolation: The individually wrapped coils help reduce motion transfer; reinforced edges widen the usable sleep surface and improve durability.

• Build Quality & Certification: The mattress is GREENGUARD Gold and CertiPUR‑US® certified in many builds (meaning low VOCs and safe foam materials) depending on version.