i have had a memory foam topper for several years now, I have Rheumatoid Arthritis and it has made a big difference to my comfort. This 3" topper is fantastic value for money, it arrived really quickly and was easy to put on the bed. my first topper was nearly £150:00 and a third of the depth! So this is truly wonderful and just the best value, it does not have a cover, but that is not necessary as I used my fitted double sheet to cover it and the used a 'kingsize' fitted sheet to accommodate the extra height! Works brilliantly would strongly recommend and have already told my friends!