Skip to content
Free delivery nationwide, and a 120-night comfort exchange on mattresses
Free delivery nationwide and a 120-night exchange

Helix Sunset Core with Breathe Knit Cover and ErgoAlign Layer

Original price $2,110.00
Original price $1,247.50 - Original price $2,735.00
Original price $2,110.00
Current price $1,688.00
$998.00 - $2,188.00
Current price $1,688.00
Availability:
In stock
Availability:
In stock
Availability:
In stock
Availability:
In stock
Availability:
In stock
Availability:
In stock
Availability:
In stock
Size: California King

Helix Sunset Core – Breathe Knit Cover & ErgoAlign Layer

The Helix Sunset Core with ErgoAlign Layer combines the plush comfort of the Sunset Core with targeted lumbar reinforcement to provide enhanced support through the center third of the mattress. Featuring Helix's breathable Breathe Knit Cover, pressure-relieving memory foams, responsive coils, and the ErgoAlign Layer, this soft hybrid mattress delivers exceptional pressure relief while promoting improved spinal alignment.

Mattress Details

  • Soft 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

Provides targeted reinforcement beneath the hips and lower back to help encourage healthy spinal alignment.

Soft Hybrid Feel

Offers deep contouring comfort with balanced hybrid support.

Breathable Breathe Knit Cover

Promotes airflow for a cooler, more comfortable sleeping environment.

Pressure-Relieving Comfort

HD Gel Memory Foam and HD Memory Foam gently cradle pressure points while maintaining balanced support.

Responsive Coil System

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

Ideal For

The Helix Sunset Core with ErgoAlign Layer is an excellent choice for side sleepers looking for plush comfort with additional lumbar support. It's ideal for sleepers who enjoy a softer feel while wanting enhanced support through the lower back.

Why You'll Love It

The Sunset Core with ErgoAlign Layer combines the pressure-relieving comfort of the original Sunset with enhanced lumbar support for a balanced sleep experience. It delivers the plush feel side sleepers love while providing additional reinforcement where many sleepers need it most.

Comfort & Construction

The Helix Sunset Core begins with the Breathe Knit Cover, designed to encourage airflow across the sleep surface. Beneath the cover, HD Gel Memory Foam and HD Memory Foam provide deep contouring comfort while helping relieve pressure around the shoulders and hips.

The ErgoAlign Layer reinforces the center third of the mattress to provide enhanced support beneath the hips and lower back. Working together with the Edge Support Wrapped Coil System, it promotes proper spinal alignment while delivering targeted support, reduced motion transfer, and reinforced edge stability. A durable HD Base Foam foundation completes the mattress for long-lasting comfort and dependable performance.


Sunset Core Ergo Align - Twin
75.0in L, 38.0in W, 11.5in H
Sunset Core Ergo Align - Twin Long
80.0in L, 38.0in W, 11.5in H
Sunset Core Ergo Align - Full
75.0in L, 53.0in W, 11.5in H
Sunset Core Ergo Align - Queen
80.0in L, 60.0in W, 11.5in H
Sunset Core Ergo Align - King
80.0in L, 76.0in W, 11.5in H
Sunset Core Ergo Align - California King
84.0in L, 72.0in W, 11.5in H
Sunset Core Ergo Align - Split King Set
80.0in L, 76.0in W, 11.5in H
Free delivery nationwide

White-glove setup on local mattress deliveries. Delivery details

Financing available

With approved credit. Financing details

Free old mattress removal

On California deliveries, one for one. Delivery details

120-night comfort exchange

One exchange within 120 nights on new mattresses. See terms