The Slumbercrest Kelby Mattress by Slumberland is a rare luxury mattress that infuses superior fabrics, nested pocket coils, and gel-infused foam. The top layer is designed to cool the skin by combining copper and cooling yarns. Below that is a complex, layered system of soft foam and medium-firm gel foam. Below this are hundreds of 6" coils wrapped in individual fabric sleeves. Additionally, the tack and jump small diamond top pillow deck is a fire barrier. The top to bottom height of this mattress is 12.5" thick and engineered for your comfort. If you require a twin-sized mattress that does not sacrifice comfort or breathability, you need to try this mattress. You can sample Slumbercrest Kelby mattresses at Slumberland Furniture. Or, if you know you want to own the Slumbercrest Kelby Mattress, order yours online. It ships to Slumberland delivery zones, so check your zip code today!