That happened to me. I'd been there a couple days and realized nobody was aware of how suicidal I was so I wrote it down. Handing a psych nurse a suicide note gets a lot of rapid attention....So they said I had to be visible at all times except in the bathroom. I changed sides of the room with my roommate so she could sleep behind the curtain and I was in line of sight all night long. I begged the pdoc to remove line of sight the next day and he did but I was on checks every 5-10 minutes for a while. Everyone else moved to 60 minute checks and I was still on 15. They tried to be subtle but that's pretty difficult when they are always looking for one person.

When my roommate went home I never asked to go back to the curtain side of the room so I dealt with the light the rest of the 2 weeks I was there. Next time I will know.