Southern Disposition: Pillow Mattress Tutorial using one duvet cover and 5 cheap pillows from Ikea. I am not sure what the pillow is for. Maybe one end has 2 pillows for a raised head. Looks pretty simple.
Simple built-in to create a mudroom and/or storage anywhere from an entry, to kids room or in a laundry room by adding shelves or a deeper bench for sitting. Put drawers under bench or have the seat lift up to store things.