This mattress surprised me so much! I was scared when I sat on it how much it sinks in and it is definitely the softest mattress I've ever owned, but my sleep was amazing! It is so soft and you sink in quite a bit and as a side sleeper I thought it might not be comfortable all night. Instead of not being comfortable I had one of the most restful sleeps ever. Even my Oura ring next morning showed me that my sleep was excellent and that there was barely any movement all night.