First of all I wouldn't touch a spring mattress, not good for posture ;) I would also stay away from a mattress topper, I would just go straight for the whole thing and have the whole mattress in memory foam (unless you are looking for the cheap opti...
Select Comfort Sleep Number Bed!!! Memory foam mattresses are comfy if you buy a really thick one. I probably wouldn't buy a mattress from IKEA because they are probably really cheap and not very high quality. I would try Overstock or Amazon if you'r...
Memory foam mattresses are supposed to be the best as they mould themselves to the shape of your body and give you a floating effect as you sleep. Brad Pitt swears by them.