Advanced gel infused memory foam technology and customized conformability at a great value, the Grandbury mattress proves you can get a good night's sleep without breaking the bank. Designed to reduce painful pressure points while providing plush, body-conforming comfort, this foam mattress helps you fall asleep by cradling your body with its sumptuous cushioning, and ensures that you remain sleeping soundly through the night thanks to superior support. Utilizing extra soft Serta PillowSoft foam, this foam mattress features innovative Cool Twist gel infused memory foam that works to dissipate heat while gently contouring to the body. 10 Year Non-Prorated Warranty.