2 FREE PILLOWS AND A FREE SET OF MICROFIBER SHEETS WITH EVERY PURCHASE! The Alexander Signature 13.5” Hybrid Mattress is quite possibly the most comfortable mattress available on the internet. This mattress is the perfect blend of support foam, individually wrapped coils and pressure relief. The Alexander Signature Hybrid mattress utilizes 8” of Quantum Edge Pocketed Support Coils with 1” of 3lb. Smartflow Support foam layered on top of the coils for breathability and extra support. It also provides a movement-free sleep surface and supports the back perfectly. In addition, we combine 1.5” of 2.5lb Copper Infused Energex Foam, 1.5” of our TitanChil Endurace Foam and a top layer of 1.5” of 4lb. Gel Infused Memory Foam and Super Soft Quilted Thermic Phase Change Cooling Fabric to leave you sleeping cooler and more comfortably through the night. The Thermic Phase Change Cooling fabric will help your body regulate its ideal sleeping temperature through the seasons. Just below is a layer of cooling Copper Infused Memory Foam, the most innovative foam on the market today. Copper is known for its antimicrobial properties, but also its conductive properties. Heat is pulled away from your body into the copper, making this mattress sleep very cool. We use our SmartFlow air flow system with punched foams and breathable layers to achieve maximum air flow. The Alexander Signature Hybrid mattress is proudly Made in the USA using Certi-PUR certified foam. Durable and supportive, the Alexander Signature is built to last. Nest Bedding offers an industry leading Lifetime Warranty guarantee and a 100-night sleep trial.