so it's not him! Was the same a couple of days ago. Upstairs flat is being renovated so I'm guessing workmen have been in the room above - could them smoking make the room below smoky? (There is no flat below us)
So my pfb-ish question is - would you be worried about it/would you let him sleep there? He's asleep now and I though it would fade if I left the door open, but I just went in to check and it's still really strong.