Facebook Vampire - someone who checks Facebook so much at night they might as w

someone who checks Facebook so much at night they might as well be a ghost haunting the internet.

I checked Facebook at 2 AM and my brain was like, 'Why? You're not getting any replies.'

My friend is a Facebook Vampire. He checks Facebook at 2 AM and says, 'This is my life now.'

I got a message at 2 AM from my Facebook Vampire cousin. It said, 'I'm still alive.'