I went from a really hard memory foam mattress to this. It is like sleeping on a cloud, so so comfortable, I can't feel the springs at all. However, the only downside being that as soon as my partner gets into bed I seem to roll into him and have an uncomfortable nights sleep trying to get out of the hole he creates, but he is on the larger side (19st), I can't feel his movements in the night, but I do roll into the middle with him in bed. We've only had it for 3 nights after 7 years of the hard mattress, so I'm sure I'll get used to it, otherwise it is really comfortable. I actually look forwards to going to bed now. The sides have good support too. The description states that it can be flipped, however only one side of the matteress has the memory foam topper, so I believe it is intended for one way up only, however we can rotate the mattress, just not flip it.