We’ve had this mattress for a little over 3 years. At first, like many others, I loved the mattress as it was comfortable and supportive. Fast forward 3 years and the mattress has gone completely soft. The Signature Sleep Essential reversible mattresses feature a 1 inch layer of comfortable foam on the top of the mattress for a soft embracing feel with 5 inches of 13.5 gauge coil mattress springs for a great night’s sleep. .