Features

• ThermoSync® graphite cooling layer: graphite-infused foam actively conducts heat away from your body, maintaining a sleep temperature of ~35.5°C for deeper, sweat-free nights.
• HRX comfort foam base: adapts to your body shape and provides even pressure relief for side, back, and stomach sleepers.
• 9cm medium-firm construction: adds a substantial layer of support and comfort to any mattress, new or old.
• Removable, washable cover: breathable top cover (98% polyester, 2% elastane) zips off and washes at 40°C without affecting the ThermoSync® layer beneath.
• Anti-slip underside: stays securely in place on your mattress through the night, no tucking required.
• Good Housekeeping Institute approved 2025: independently tested and certified for quality and performance.
• 10-year warranty: long-term confidence in the materials and construction.
• Five sizes available: Single (90x190x9cm, ~9kg), Small Double (120x190x9cm, ~10kg), Double (135x190x9cm, ~11kg), King (150x200x9cm, ~12kg), Super King (180x200x9cm, ~15kg).
• 100-night trial: try it in your own bed. Returns are handled directly through Wayfair.