As a kid, I used to believe that all my toys were actually alive, but won't show unless everyone goes to sleep, and nobody nearby is awake. Due to that, whenever I found myself awakened, I'd always check on these things to make sure that they haven't moved from where I left them. Aside from that, I also used to be hugely afraid of dark, and would keep them all lights turned on in my room before going to bed. My mom would come in every once in a while while I'm sleeping to turn them off, but most of the time, that would end in bad results, haha.
I'm still afraid of dark to this day, but just not as much. Not really sure if I'll ever get over it, but it honestly wouldn't bother me if I don't.