Chime 12 Inch Hybrid 12 Inch Hybrid Mattress with Adjustable BaseYoull be singing the praises of this 12 inch hybrid innerspring mattress, especially now that it comes with a power base. The mattress is made with high density foam to provide the firmness you love. Its gel memory foam offers restorative support for your lower back. The hypoallergenic material adds peace of mind. Taking sleep to a whole new level, the power base smoothly raises your upper body to relieve pressure points. What a great option for those