How to wake child up?

On the off chance this isn't a troll...

You need to call her mother NOW and have her taken to the ER. NOW. A fall followed by extreme drowsiness is a sign of a concussion, and especially on an 18 month old, that needs to be evaluated NOW.

I say Troll and will still give a good answer.

YOUR lazy azz will be held accountable if anything happens to that child, so unless you wanna be violated in jail, daily, I suggest you call an ambulance, The child is in real trouble.

In case you're not a troll (in which case you should never babysit another child until you learn to identify emergencies and act accordingly): call the mother while you grab your keys and tell her to meet you at the ER. You bring the little girl, obviously.

Don't listen to that person about not letting them sleep after banging a head. After all we heal fastest when sleeping.

Phone mum tell her to meet you at A&E she might have bleeding or be severely concussed. Don't wake her. Just get her the hospital. ASAP.

Is this a joke? I really, really hope so. You need to contact her parents because she needs to see a doctor.

Check for a pulse

I really hope that child did not hit her head.... any time somebody falls and hits their head YOU DO NOT LET THEM GO TO SLEEP.

Tell her the boogie man has come to haunt her! She will wake up quicker than an alarm clock.