We have had our mattress for 3 months and have never been happier. I have lower back sci joint arthritis and receive cortisone injections but have not needed them since sleeping on our new mattress. I no longer wake up during the night and have the most comfortable sleep ever. My husband was a non-believer and cannot believe the difference. No longer having neck issues and wakes up feeling great. 🙂 Thanks for a great sleep!