Someone distinctly lacking self-awareness. Like a person who comes onto public transport wearing a rucsac and doesn’t realise that he’s knocking into people behind him every time he turns around.
Don’t pay too much attention to Joe, he’s just a bit of a rucsacker. He often has no concept of the effect he has on people with the things he does or says. You’ll get used to it.
Either liquid niquil or any liquid drink with melatonin, Ashwaganda or other sleeping aids in a liquid form. If warm tea helps you get to sleep that could be sleepy juice too.
I could not sleep so I chugged some sleepy juice and now I'm so tired and sleepy.