Definition of «upper bunk»

The phrase "upper bunk" refers to the bed that is positioned higher than another one in a bunk bed arrangement.

Each cabin has a double lower bunk bed and single upper bunk bed, as well as a private bathroom with a hot water shower and toilet. (anywhere.com)
Featuring a double bed and single upper bunk, they can be singles, couples or twin share. (dive-the-world.com)
These rooms normally sleep 2 guests, but rooms with upper bunk beds sleep up to 3 passengers. (dunhilltraveldeals.com)
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