Traditional Culture Encyclopedia - Hotel reservation - Who is the undercover? How to describe the double bed?

Who is the undercover? How to describe the double bed?

Who is the undercover? The description of the double bed is:

1. This is a place where two people can sleep together.

2. This place is very large, and there are many places for one person to lie down.

3. This is only available in hotels outside. The above methods all describe who is undercover in the double bed.