Although I don't have solution, I wanted to jump in here and say I feel your frustration.

When I was an apt dweller, the couple right beside me used to fight like cats and dogs. I could hear everything. Our medicine cabinets were back to back in our bathrooms. I could smell his awful after shave even in my bathroom.The guy upstairs apparently exercised in his apt. And me? Yes, I was considerate and quiet as a mouse and just put up with it.

As a homeowner, we live rural. The dog across the road is sometimes put out in the middle of the night and barks and howls incessantly. If they go away, we have to listen to that for however long they're gone. The dog sleeps all day and carries on all night.

So I feel deeply what you are saying. It's horrible to go to work w/o sleep. It messes up your life really.

The thing is that these days you never know if someone is going to come unhinged if you complain about him/her. People are just so unpredictable. Also, he could be taking great delight in knowing that he's disturbing his neighbors. Anyone with half a brain would know that people are sleeping while he's making noise. I wonder if others have complained.

The only thing I can think of are the old sayings, "keep your friends close but your enemies closer" and "kill 'em with kindness." How about if you'd buy or bake a decadent dessert and pay him a visit? Take a male friend with you. Confront him in a nice way and not accusatory. Introduce yourself as his downstairs neighbor and that you just wanted to say hi and see where it goes. If he's single, he'll appreciate the gift of food and after he meets you and sees you as a human being and not an invisible tenant, maybe things will change for the better. That's the best I can do.

Good Luck and please repost any progress.