This article reports on the findings of a study which was carried out to compare the effect of the Softform Premier Active mattress™ (a foam mattress with a dynamic, alternating underlay), versus a standard air mattress on pressure ulcer incidence in two acute, care of the elderly wards over a six-month period. The results revealed a pressure ulcer incidence of 8% in both groups, which was considered to be unexpectedly low in such a vulnerable, high risk population. It was concluded that the Softform Premier Active was as effective as the standard air mattress in pressure ulcer prevention, but had the advantages of dual functionality and lower cost.