King Mattress, Sailvan Medium Firm King Size Mattress, 12 inch Mattress King in a Box with Memory Foam & Spring, Hybrid Mattress for Pressure Relief with Edge Support & CertiPUR-US

✅ENJOY HEALTHY SLEEP - Sailvan king size hybrid mattress combines premium memory foam with individually pocketed coils to provide superior comfort and targeted support. Your weight is evenly distributed, ensuring a restful night's sleep. CertiPUR-US certified and tested to be free of harmful substances, giving you complete peace of mind every night. ✅OPTIMAL MEDIUM FIRMNESS MATTRESS - This king mattress offers a perfect balance of firmness, not too hard and not too soft. Our research indicates that this medium firmness is favored by the majority of U.S. consumers, ensuring a comfortable sleep experience night after night.Say goodbye to aches and pains and wake up feeling refreshed each morning. ✅BETTER SPRING POCKET SUPPORT - Sailvan 12 inch king mattress offers an innovative blend of individually wrapped pocket coils and cooling gel memory foam. Its precision-engineered design provides customized support for every curve, evenly distributing your body weight from head to toe. Say goodbye to daily stress and embrace a truly restful night's sleep. ✅MOTION ISOLATION - The hybrid mattress king built with independent pocket springs and slow rebound sponge, can effectively absorb the noise and vibration generated by tossing and turning during sleep, ensuring you sleep through the night without disturbance. ✅KING MATTRESS IN A BOX - Sailvan king size spring mattress come with 100-night trial and 10-year warranty. We recommend allowing 48-72 hours for your mattress to fully expand and reach its optimal comfort level. Should you have any questions or concerns, our dedicated support team is always ready to assist you.