Helix Midnight Core with Breathe Knit Cover and ErgoAlign Layer

Helix Midnight Core – Breathe Knit Cover & ErgoAlign Layer

The Helix Midnight Core with ErgoAlign Layer builds upon the balanced comfort of the original Midnight Core by adding targeted lumbar support through the center third of the mattress. Combining Helix's breathable Breathe Knit Cover, pressure-relieving memory foams, responsive coils, and the ErgoAlign Layer, this medium-feel hybrid mattress is designed to provide enhanced spinal alignment while maintaining the contouring comfort that makes the Midnight Helix's most popular model.

Mattress Details

• Medium comfort level
• Hybrid mattress construction
• 11.5" profile
• Breathe Knit Cover
• HD Gel Memory Foam
• HD Memory Foam
• ErgoAlign Layer
• Edge Support Wrapped Coil System
• HD Base Foam
• Adjustable base compatible
• CertiPUR-US® Foams
• GREENGUARD Gold Certified
• ACA Certified

Key Features

ErgoAlign Lumbar Support

The ErgoAlign Layer reinforces the center third of the mattress to provide enhanced support beneath the hips and lower back, helping promote healthy spinal alignment.

Pressure-Relieving Comfort

HD Gel Memory Foam and HD Memory Foam work together to contour around the shoulders and hips, helping relieve pressure while maintaining balanced support.

Breathable Breathe Knit Cover

The soft knit cover promotes continuous airflow for a cooler, more comfortable sleeping environment.

Responsive Hybrid Design

Individually wrapped coils provide targeted support while helping reduce motion transfer between sleep partners.

Balanced Medium Feel

Designed to deliver an ideal combination of contouring comfort and responsive support for a wide variety of sleeping styles.

Ideal For

The Helix Midnight Core with ErgoAlign Layer is an excellent choice for side sleepers, combination sleepers, and anyone looking for balanced pressure relief with additional lumbar support. It's especially well suited for sleepers who want enhanced support through the lower back without changing the signature medium feel of the Midnight collection.

Why You'll Love It

The Midnight Core with ErgoAlign Layer maintains everything that has made the Midnight Helix's most popular mattress while adding targeted support where many sleepers need it most. The result is a comfortable, balanced hybrid mattress that delivers pressure relief, responsive support, and enhanced spinal alignment throughout the night.

Comfort & Construction

The Helix Midnight Core begins with the Breathe Knit Cover, a breathable stretch-knit fabric designed to encourage airflow across the sleep surface. Beneath the cover, HD Gel Memory Foam and HD Memory Foam work together to provide contouring comfort and pressure relief while maintaining balanced support.

The addition of the ErgoAlign Layer reinforces the center third of the mattress, helping provide enhanced lumbar support beneath the hips and lower back. Below, the Edge Support Wrapped Coil System responds independently to movement to provide targeted support, minimize motion transfer, and reinforce the mattress perimeter. A durable HD Base Foam foundation completes the construction, creating a stable hybrid mattress designed for long-lasting comfort and performance.