Mattress is pretty hard. I am a side sleeper and the only reason I dont return it is due to already having a 2 inch foam mattress topper that I'm using on top of it
We’ve been sleeping on our mattress for about a week now. A little soft at first but after 3 days it was perfect. Tuft & Needle was great to work with and we are so happy with our mattress and mattress protector. Great product for a great price.