I purchased the ‘woolroom’ mattress topper to see if I could find some improvement for osteoarthritis in my hips and shoulders. Sleep has frequently ended with uncomfortable and interrupted nights; having already had several artificial joint surgeries I am keen to avoid further operations for as long as possible. I also get very warm when sleeping and cannot tolerate memory foam and similar surfaces for this reason. I was somewhat doubtful about the wool topper too - we already have wool duvets from another source that I personally find too warm. However having used the wool mattress topper for a week I have to say the comfort to my joints when in bed is noticeable. It will never be perfect because of my medical problems but i have found a significant improvement with discomfort and together with my usual 4.5 tog goose down duvet I am comfortably warm.