I know I struggled with this when having mine installed. There are so many variables. I found this article online that sort of raps down some of the things to consider. You could also look at houzz and sort by bathroom wall mounted faucet. Luckily, mine worked out great. You can look at mine by searching at the bottom of this page for Treetop (I posted pics with that name). "Julius Ballanco, president of JB Engineering and Code Consulting in Munster, Ind., says since wall-mounted faucets take more abuse, contractors should choose a sturdy one. "I will pay extra money for a solid-brass connection," he says. Bartlett cautions remodelers to make sure they can find parts for whatever type of faucet they choose. Height and depth Bartlett also advises contractors to "measure, measure, measure" when installing these faucets. "Have your sink available to take measurements from to make sure you have the right height," the plumber says. He says that although there's no standard for wall-mounted faucet heights, contractors must leave an air gap between the top of the sink and the bottom of the faucet. "Don't let the faucet go inside the sink -- that's a code violation. You need 1 inch of airspace between the top of the sink's flood level and the bottom of the faucet," he says. On the other hand, if the faucet is too high, he cautions, water will splash out of the sink. Tim Mullally, president of KWC Faucets, in Norcross, Ga., says the company's Vesuno faucet extends 6, 9, or 12 inches from the wall. "The height of the faucet will depend on whether you're using it with a vessel bowl, a bar sink, or an under-mount sink," he says. Since the faucet is mounted on the wall, it also requires a longer reach to operate. Mullally says that if the primary user of the bathroom is a child or is short, make sure they can reach the handles."

I would try relaxing in the various positions that I intend to watch TV at and stare at the wall. Wherever it's most comfortable would be where I'd put it. Forget the rules, do what works for you. How about on the ceiling directly above the bed? Well, that might a bit dangerous, but I bet it would be comfortable. Personally, I loath having a TV in the bedroom. For me bedrooms are for sleeping, reading, and "other" activities with the missus. We had a TV in the bedroom many years ago and we both found it annoying when the other was watching TV. Now the TV's are restricted to the family room and the TV room only.

Dragonflygirl girl, in my experience, water pressure in the water coming out of the pipe no longer has much influence on how ”hard” the water falls in a rainhead. My thinking is that the water ”uses up” some of the kinetic energy it gained from being under pressure in the pipe in the effort to spread out in the 12” diameter rain head. I don’t think having the water in the pipe until it is closer to your head matters much for pressure. In cold weather, though, I think that it does have a noticeable influence on the temperature of the water that hits your body. I might seriously consider a longer down pipe.

The diagram Sammy posted is a good guide for the height. You could wire for your lights even before you decide which mirror(s) to buy. We did a 6” backsplash and started our beveled, unframed mirrors immediately on top of the splash rather than leaving a space there because the mirrors were filling the whole space wall-to-wall.