I have been going to bed and waking up with hip pain and neck pain for awhile now. My mattress is not that old so I didnt want to get rid of it. I bought this topper and tried it out. After the first night my pains have gone and I wake up feeling like I have slept and not waking up in pain and exhausted.  So glad I gave this a try for less money then what I would have had to shell out for a new mattress!  5 stars!