This mattress worked well for me and my husband for about 8 months then the bottom fell out (literally). We both started having severe back pain because the mattress started sagging. There is no support at all anymore. Comfort Felt great in the store but now I wake up every morning then go straight to my heating pad for relief. Support Mattress has no support at all. Durability We have had this mattress for 1 year. We started having problems with it after about 8 months.