I sleep with the hall lights on but mainly for my 6 yr old. She also sleeps with the lamp on in her room all night because if she wakes up and it's off, she will scream and freak out until it's on. I usually watch my cats to see if they act weird and if they are acting normally then I feel a bit better. They're all on my bed acting pretty normal so I'm calming down but I feel silly. Glad to know I'm not alone.