A 48" wide mattress is classified as a 3/4, falling in between a standard twin and a full.
queen
A semi bed size mattress typically measures 48 inches in width and 75 inches in length.
The standard queen size Sheets for American Size Mattress are: 60"( inch) by 80" ( inch ).
four inch
7/8
it is a special size now a lot of motor-homes and travel trailers have 49 inch beds you will have to order one
full
There are 30 inch side rails available for twin size beds that tuck between the mattress.
A single size mattress is also called a twin size mattress and the standard measurement is 39" X 75". The other type of single mattress is a super single, which is a larger version that measures 48" X 84" and can accommodate a much taller and broader individual.
what is the physical size of a queensize mattress
A king size mattress is 76" wide x 80" long and the queen size is 16" less than the king size.
A queen mattress is 6 inches wider and 5 inches longer than a full size mattress. You could make a 6 inch tuck down the middle of the bed skirt and it would work.