Helix Midnight Luxe with GlacioTex Cooling Cover - Best Cooling Mattress for Side Sleepers

The Helix Midnight Luxe with GlacioTex Cooling Cover combines pressure-relieving comfort with advanced temperature regulation specifically designed for side sleepers. The mattress features a medium-soft feel that cushions shoulders and hips while maintaining proper spinal alignment through zoned support coils. The optional GlacioTex cooling cover uses high thermal conductivity fibers to actively pull heat away from the body, complementing the breathable hybrid construction. Multiple layers of copper-infused and gel memory foam work with the pocketed coil system to enhance airflow and prevent heat buildup. The balanced construction provides enough give for pressure relief while preventing the sinkage that can cause overheating in all-foam mattresses.

Side sleepers particularly benefit from the contouring comfort layers that reduce pressure points without trapping heat. The mattress performs well in temperature regulation tests, with minimal heat retention during extended use. While the base model includes cooling features, the GlacioTex cover upgrade provides additional temperature control for hot sleepers. The 100-night trial period allows adequate time to evaluate the mattress's performance across seasons. Helix's lifetime warranty reflects confidence in the durability of materials and construction.