See it here at Mattressman.co.uk:
http://www.mattressman.co.uk/product.aspx?page_id=1&size_id=4&PID=16139
This is the Ortho Dawn mattress from Silentnight. The trademark Miracoil spring system helps tp ensure that your weight is evenly dispersed to provide outstanding comfort and support and also to minimise “roll together” Designed to relieve your body of aches and pains, the Ortho Dawn offers a fantastic night's sleep.