Bunk (up) together phrase
To use a room or lie in a sleeping space at the same time as someone else.
When bunking together with John last night, I couldn't sleep due to his snores!
Sometimes, in the winter, I love bunking up together with my sister, as by doing that, I felt much warmer and easier to sleep.
The verb "bunk" must be conjugated according to its tense.
The origin of this phrase is not clear.