At exactly 4:20am I was startled awake by several quick taps on my bedroom window. Storm (my cat) also seemed to be alerted so I don't think it was auditory hallucination. But after I got my glasses and looked outside, there was nothing. And it's dead quiet so I'd expect to hear something if there was anything, even footsteps. Nothing on the cameras, but they don't cover the bedroom window.

WTH man