Many people ask, “What are the different mattress sizes?” Below are the actual dimensions of mattresses.
When planning for the space needed for each size bed, we recommend adding 6″ to the length of mattress for the headboard and another 6″ for the footboard. You should add 6″ for the overall width for a single rail bed and 12″ for a double rail bed.
Twin: 39″ W x 75″ L
XL Twin: 39″ x 80″ L
Full/Double: 54″ W x 75″ L
Queen: 60″ W x 80″ L
Standard (Eastern) King: 76″ W x 80″ L
California King: 72″ W x 84″ L