Casper Nova Hybrid vs Polysleep Zephyr - 2023 Review

Cooling helps keep you at the right temperature for your best. Two layers of perforated breathable foam help reduce heat. Plus every mattress saves up to 70 recycled bottles from the environment. A top layer of proprietary perforated breathable foam helps reduce heat, the tiny holes move hot air and body heat away. With a thin coating of cooling gel that adds a refreshing feel. This innovative cooling system is designed to help keep you cool all night. Second layer of AirScape™ helps prevent overheating. These air channels allow heat to escape. Resilient springs increase airflow.

Superior plushness without sacrificing support. More support where you need it most with the plushness you crave. Zoned Support™ Pro offers 7 zones of targeted support for healthy spinal alignment, softer foam around the shoulders provides more relief to the upper body and multiple ergonomic points under shoulders, hips, waist and lower back. A firmer border provides edge support to help you get in and out bed easily. Premium AirScape™ foam conforms to your body to relieve pressure. This has a plush, velvety soft feel. A second layer of supportive foam has 3 ergonomic zones to help align your spine and provide more relief. A third layer with Zoned Support™ Pro relieves pressure under the shoulders, and provides more support under the waist, lower back, and hips to align your spine. These zones reinforce support from the layers above. Fabric-wrapped springs provide active support and a little lift.