HI, could anyone help with the measurements of our 2013 Swift 570 SE , we are looking to replace it with one not so high and a different make . Duvalay supply the mattresses for swift from 2014 onwards but their measurements are at least 20cm out in the length, Swift can only give me 3 measurements & none for the cut off sections . The current mattress is an "Ultra Comfort "sprung mattress that looks original with a pelmet. Unfortunately the van is in storage 100 miles away, & sales at Duvalay say their measurements are correct even though mine are closer to swifts and their measurements were titled" Sterling Eccles"so they are saying our bed may be a custom size from new!!!!!!. there is no sign of any alteration in the caravan and the original carpets bare that out.