Cant talk at the moment, jsut wanted to pop in.
Ali - ask your physio to organise from the hospital a Bed Stick. It like S shaped metal pole with a en turned up. Goes under the mattress and the pole sticks up along side the bed to help you pull yourself up and move whilst in bed.
She should know what iit is - be able to get it through the occupational therapist at the hospital. Hope the bed rest helps huni