Hmm last time I heard a noise in my room and turned out to be a Rat hiding under dressing table. I tried to kill him but he ran under my bed and under my bed its full of junk of my car/computers lol.
So I ignored him and tried to sleep but than i saw his tail hanging from back of my bed near to my sleeing little daughter so I decided at 1:00AM its time to kill, cant take risk of him near my daughter 
Action started at 1am ended at 130 some how managed to get him into the washroom and that was it phew. Turned out he came from the old windows type a/c hole in the wall. got that fixed properly now :p.