The sleepshaper gold firm mattress is made up of a 15cm layer of polyurethane base foam and a 5cm layer of vystex foam it features v max cooling channels an adaptive cover and edge 50 support for extra comfortall sleepshaper mattresses are automatically guaranteed against manufacturing defects for 1 year from point of purchase there is an opportunity to extend this to a 10 year limited guarantee if you register your mattress online at wwwsleepshapercouk within 1 month of purchasing this