Wasnt sure which mattress to get. Finally just picked this 1.   Definitely a Great Choice !   I have every bone in my neck crushed, cracked , herniated or w a slipped disk. Smh . CRPS in my spine. A Shoulder awaiting Surgery from a failed Rotator Cuff Surgery  torn tendons . And sprained  bruised ACL  Hamstring in my Left knee from moving .  Needless to say.  Its Very Hard to get a Decent Nights Comfortable Sleep .  Hasnt been a Problem w this mattress !!  Its Amazing !   Even just thrown on top of my box springs right on the floor !  ( I cant find the bed hardware since moved in a few weeks ago. Smdh ). But its so Comfy , I dont even Care Haha