Sprung: Features a Bonnell sprung open coil system, 20.5cm depth and double comfort fillings for a superior night of sleep. Mattress: Get a grey border double comfort air conditioned eco mattress. Air conditioned: The air conditioned fabric is their own trademarked fabric design, which is more breathable than standard mattress fabric. It allows air to flow allowing warm air to be pushed out of the mattress when you move. Cool touch: Plus an aspire-cool touch diamond tile sleep surface. Made in the UK: Made in the UK and delivered rolled. Sizes: Choose single, small double, double or king. | Double Comfort 8" Air Conditioned Sprung Mattress - Grey - Single | Wowcher