A Cool Blue Foam Mattress Topper is a great way to add a layer of supportive comfort to a firm or tired mattress. A cost-effective way to experience the pressure relieving benefits of Cool Blue foam, a mattress topper can easily be attached to your existing mattress with a fitted sheet, refreshing your bed and eliminating the aches and pains associated with sleeping on an older mattress. Cool Blue foam mattress toppers incorporate orthopaedic qualities, with an ability to absorb movement and body weight to offer full support throughout the night, meaning you feel more revitalized and rested when you awake.(3FT) Single - 90 x 190 CM. (4FT) Small Double - 120 x 190 CM. (4FT 6) Double - 135 x 190 CM. (5FT) King - 150 x 200 CM. PLEASE NOTE: Foam Colour May Differ (Blue Or Yellow, Creamish).