Full bed size double bed size. Full size mattress measures 54 width x 75 in length and these are also commonly referred to as standard double sufficient for adults that need more room than what a twin can offer. Bed Sizes And Space Around The Bed Bed Sizes Bed Dimensions If you are in a relationship this may not be the best choice for you as the fit will be exceedingly tight. Bed sizes us . Great for sharing a bed with an active or. Crib bedding needs to be an exact fit to the mattress for the safety of the child. California queen bed size. Twin full queen and king are the standard bed sizes in the u s but there are also variations on these sizes such as extra long twin and california king. Expanded queen bed size. These bed sizes are used in usa and canada. Toddler mattresses are the same size as crib mattresses. You can continue to use the same size sheets but will probably want to add more blankets to the bed. Us bed sizes inches. While twin is conside