4ft6 Double Mattress for sale. Quality memory foam mattress, which is comfortable (medium firmness) Never used as was planning to move out, but change of circumstances forces sale. Still in packaging. These mattresses are very expensive (over £650), so grab a bargain. MATTRESS FEATURES - Standard UK size 4ft6. - High density memory foam - Hypo-Allergenic - Contours to your body's natural shape - Full head to toe anatomical support - Relieves pressure points across the body - Promotes good blood circulation - Suitable for any type of standard size bed base - Fully compliant with all UK fire regulations - 6"thick overall - Rolled for