We treated ourselves to single electric beds many years ago (when we were both fit and healthy) and now they have come into their own..we have them bolted together, but the mechanism and mattresses are independant...so we still sleep together but can each raise head or feet to the required angle. We have single fitted sheets on the mattress and super king sheet over the top of us...which is also good for washing..if I spill my drinks etc, then only the one single fitted sheet needs to be washed. I can also be more independant when I wake up or go to sleep and can just press a button to adjust my position..saves me bothering my other half. We bought ours in the Uk but if you look around in the USA, they are not rediculously expensive. ( we live part time in florida, so looked there many years ago, and prices were not too different from the UK)