Was fortunate to have a showroom nearby and found the Dusk Luxe to be the perfect mattress for back sleeping. It is good for side sleeping too. It does a great job of supporting your body so you are not on top of the mattress and you sink just enough that you don’t hit a hard bottom or feel like you are sinking in quicksand. It coddles your body. Glad we got the cooler top because this would be too hot otherwise and I’m not a hot sleeper but my spouse is. We also have a traditional mattress with a cool top and the Helix is not as cool but is comfortable for my spouse and I. This is the heaviest mattress we have ever owned and have found it very challenging to lift when tucking sheets and blankets but it so comfortable I would purchase it again.