I have had this mattress for 3 weeks and it’s wonderful. I have car crash related back problems and, despite my last mattress being a different brand of memory foam, never sleep on my back. I can now. When I lay on the mattress it feels slightly firm and then starts to move and suck me down into it, gently cradled and perfectly supported. My husband has very different sleeping patterns and he loves it too. One problem - we don’t want to get up in the mornings, it really is that lovely.