Do demons attack at night?

I have a habit of staying up late, occasionally until 2-3 am and being alone in my dark room. I noticed that during those times my mind is infected, i am remembering all details from my past that make me question life and i am getting suicidal tendencies, wishing i was never born and wishing to off myself. During the day these feeling are almost non existent. It may sound funny, but do demons actually have some kind of a stronger influence on us during the night?