My mattress is 4 years old. I sleep horrible. I ALWYS have.  I was thinking if I got a memory foam topper, I would sleep better. The first couple of nights I was thinking I should have bought the 2 inch topper. This 4 inch topper is thick. It is comfortable. It's been 2 weeks and I think I m used to it now. I am single so I have the queen size bed to myself. I tend to toss and turn to each side of the bed through out the night.  I am normally a side sleeper but with this mattress, I notice I sleep on my back a lot. I'll give it some more time. If I never get used to it, I know my nephew really wants it.

Oh yeah..... This topper does not have a protective cover. My mattress cover did fit it and so did my sheets. The 4 inches makes the bed much higher.