Do you need a new bed? You might. Most of us replace our mattresses every 8 to 10 years. Yet, if you've noticed you're not sleeping soundly, if your bed is lumpy, too-hard, too-soft, or just plain uncomfortable, it may be time to buy a new one, regardless of its age.
The first decision to make when buying a bed is size. Beyond the basic bed measurements, be sure to account for the addition of headboards and footboards, which can add 4 to 12 inches to each end. Bed coverings such as blankets and duvets will also add about 3 inches to both sides of the bed.
If necessary, draw your room dimensions on graph paper and sketch in the furniture and various bed sizes to determine what bed size will work best. If possible, allow 24 to 36 inches of clear space all sides of the bed for movement and changing bed linens. To get an idea of which bed size works in your room, lay newspapers, towels, or rugs in the room and walk around the space.
Though sizes can vary somewhat by manufacturer, the standard bed sizes include:
Twin: 38-39 x 75 inches
Extra-Long Twin: 38-39 x 80 inches
Double/Standard/Full Size: 54 x 75 inches
Queen: 60 x 80 inches
King/Eastern King: 76-78 x 80 inches
California/Western King: 72 x 84 inches