Can you get pneumonia if you are forced to lie on your back all night without being able to move?

Hi, my first question here, I have a history of severe depression which runs in my family and i’ve been recently court ordered to attend a mental clinic (long story) where at night we would be restrained to our beds ‘for our own safety’ something that i find extremely intrusive and have a hard time getting any sleep even with medication. I am also wondering if there can be any health side effects from this due to being on your back and unable to move for hours?