Inspired by another current thread in AIBU.
We have some close friends who we often visit in the evenings (one of us at a time because someone has to stay with the sleeping toddler) and now and then we are toddler free and are able to stay overnight. They have a bedroom but don't use it as such. They sleep on a mattress in front of the TV, which is left on all night. If I want to sleep, I have to be drunk. I tried to sleep sober but the racket and moving light in the room made it impossible. Eventually when they fell asleep I turned off the TV and managed to get my sleep.
You probably want to know why I wasn't asleep in their bedroom if they were downstairs and I can't really answer that, because I should have been!
Anyway, how is it possible that people can only sleep when the TV is on? I have to have dark and quiet in order to settle to sleep. How come the TV doesn't interrupt your somnolence when it makes random loud noises?