Just purchased our mattress and frame, having looked at many bought the one made by Murray at van-king. Retains all the under bed storage, with no frame getting in the way. Was fitted in under 1 hour. He currently makes for SWB and LWB. Can be found at www.van-king.com. was a decent journey from Norwich to Bacup in Lancashire. Lead time or order length time is 10-12 weeks.