Ok so I bought two beautyrest - one plush and one medium. This review is for the plush, it is not really plush, at least from past experience plush is certainly softer, this feels more like medium. so if you are looking for soft plush mattress this is not it. I'm a side sleeper it definitely took a few months to get used to this mattress, it was firmer than i would like it, but because i have a split king and the height on both are quite similar the split king set up worked, i do however have less lower back pain than prior to this mattress, in the beginning though if i slept on my back my upper back would kill me, i'm more a side sleeper and my lower and upper back are better now. So if you want to get this, if you like truly plush this is not for you, if you are ok with a more firmer medium mattress than this is for you.