Luxury Double Princess 1000 4ft 6 Pocket Sprung Mattress from Repose. This mattress has hypoallergenic fillings to provide extra comfort & is perfect for allergy sufferers. A wealth of pocket springs that are each encased in their own fabric pocket ensuring brilliant support. Air vents will allow air to run through the mattress keeping body humidity down. Non turn mattress. Flag stitched handles make moving the mattress a easy task.