Be sure to check you're not sitting on the remote. Make sure the lightbulb is screwed in tightly. Ghosts like to mess with anything electrical. Your dog is barking at something that isn't there. Your cat is acting weird.
Pets are able to see the dead.
Just like that kid in the Sixth Sense. You're asleep and you hear a woman crying, a child laughing, or a man whispering. All this happens when you are alone in the house. If this is happening to you, I don't want to sleep over. You sometimes get that feeling that someone is watching you.