Olivia Guest Bed. Produced from a durable hardwood the Olivia guest bed provides two full size single beds that can be converted into a large double bed. This model is supplied complete with a choice of two non-turn or double sided single mattresses at an extra cost. Bedstead Durable Hardwood Frame Finished in Mid Beech Colour Sprung Beech Slatted Sleeping Platform Two Full Sized Mattresses which can be Zipped Together Spring Loaded Legs on Underbed May Be Used As Large Double or Two Single Beds