A fixed bed refers to a bed that can remain set up for your whole holiday. If however you are looking at a layout that shows a dinette double bed, it will have to be made up in the evenings. During the day a dinette double comprises of a sofa bench area, often in an ‘L’ shape, with a temporary table, which is the dining area on-board. To assemble the bed in the evening you either drop down or pull out the table area and put a cushion on top.
The number of fixed beds can sometimes help to determine the price of the boat.