While it can vary, usually they sleep on beds.
Other times, cots or hammocks, or mattresses, or even the floor. Depends on where they are and what is available.
Nun
Seminary
It is a convent
nun
nun
nun
As a nun, I once spent years in a CONVENT.
"A woman in a convent" itself would give no palindrome, but "Nun" would give a palindrome as it is the same spelled forwards and backwards.
A convent or a nunnery is a housing quarters for a nun.
Convent
nun
Yes, she was a nun at the Convent of Saint-Gildard in Nevers, France.