Sofa by day and bed at night, most of our comfy day beds even have built-in drawers to store duvets and pillows. Many can turn into both single and double beds and you have a choice of mattress to get the comfort you prefer.
Cool DIY idea for sofa bed. Thinking about using a futon mattress for the flexibility.. omg...what a great idea. Wanted a double bed for the guest room/ my husbands office (a diy of course) but didn't have the room.... this is an awesome idea. wow!!