Damn neighbours!

I was woken at 4am by lots of screaming and shouting and banging coming from my next door neighbours. I was contemplating reaching out for the phone and dialling 999 when I realised they were actually having sex - Very loudly. The banging must have been the bed knocking up against the wall.


I lay there for half an hour before finally falling back asleep. I wonder if they realised that the whole neighbourhood can hear them as their window was wide open.
Should I put a note through the door??