Wak Oentoenk

Your bed will be the most prominent object in your room, so it has to go with your bedroom's theme, color-wise, size-wise, and style-wise. A huge bed in a small room will likely look out of place, as would a four-post bed in a room with sleek modern furnishings.

Bed Sizes
The most popular bed sizes are king, queen, twin and the increasingly popular California king. A California king is narrow and long, rather than the traditional king bed's square shape. Just make sure you have the exact dimensions of your bed before you go mattress shopping, since bed manufacturers sometimes don't follow the standard bed sizes exactly.
Bed Styles
Don’t confuse bed sizes with bed styles. Bed styles refer to the headboard and footboard. The basis of any bed is still the mattress and frame, which only vary outwardly in terms of the sizes listed above.