My vote is only one sconce in center. Two looks cluttered. If the 3 total isn’t enough light, I’d use lights over each mirror instead.

I did three in my bathroom(s). Four only works if you have a much longer vanity. I also included several recessed lights in the bathroom to provide light from more than one directions. Maybe pick sconces that have more than one bulb and put out more light.

Chispa’s reply made me wonder if the sconce style you’re considering also comes with 2 lights on one center plate. If yes, then the single light style could be on outside of mirrors & double light on one plate in center.. Might be a stretch but I did search & found double light sconces but didn’t keep going to see if a matching single light sconce available.

Mybathroom vanity is 97” long. I wanted more counter space on each end of the vanity so my sinks are approx. 19” from each end of the vanity. I have 24x36” mirrors over each sink and there is 18” of space between the 2 mirrors which one inch less than your space. My sconces have a 5” back plate and 4” glass shades so those measurements are the same as yours. I used one sconce between the mirrors. Here is how it looks

Even though you have 1” more space between your mirrors I think two sconces would look too crowded.

I also have 3 recessed lights in the ceiling by the vanity and another recessed light in tub/shower area. You definitly should consider recessed lights for your bathroom. Even with a window in my bathroom, the recessed lights are needed along with the sconces for adequate lighting

Thanks for all your opinions. We looked up and down for a double sconce that my daughter liked, but could not fing the right one. (saw some I liked).

We initially rejected two sconces in the middle, but had second thoughts!

Thanks Badgergal for the photos, very helpful. Such a pretty bathroom.

When doing 3 sconces like the second layput, do you center the end sconces in the left over space ( about 16 inches) or can you bring them in closer to the mirror?

In a perfect world, I would probably put them the same distance from the mirror as the center one is, but then it seems too close to the side walls?

I like what Badgergal has, but her vanity spans the entire length

Will there be overhead lighting? I’m struggling to visualize the lighting effect / result of sconces that are not the same distance from each side of the mirror as I’m looking into mirror - and trying to apply makeup! Is one side of my face in shadow? I wouldn’t want to chose decor over function so I might need to chose another lighting option for bathroom. If this were a powder room - that’s an entirely different ball game.

I believe her layout would look similar to badgergal's, but instead of a 97 inch vanity, she would have a 72 inch vanity with one light centered in the middle space (9 1/2 inches from mirror edges) and side lights centered in a 16 inch space on the sides (8 inches from mirror edge)

If she does 8 inches from the side of the mirror, I can't imagine that 1 1/12 inches will make a big difference.

I guess if she moves the sconces a lot closer to the mirror, that could make a difference.

She is thinking of recessed lights somewhere in the bathroom (8 X 10 feet.)

Do most people turn on their recessed lights and sconces at the same time most of the time?

I can only say that when I’m doing anything involving my face or hair, I turn on my vanity lights which is a 2 light fixture, one over each mirror plus the two over head lights in my bathroom. I also have a large window behind me over the pedestal tub & another smaller window to my left & @ 8’ away, next to the shower. I am a person who needs light.

The bathroom I posted is our hall/guest bathroom. I basically use it as my bathroom and my husband uses our bedroom ensuite bath as his. The hall bath has separate switches for the vanity lights, the 2 overhead recessed lights and the 1 recessed shower light. I always turn on all the lights. Like KW, I am a person who likes light. If my husband uses the hall bath he never turns on the overhead lights and always dims the vanity lights. I’m not sure which lights that guests actually use. All this is to say just put the lights on separate switches so you have options.

Also as far as placement of the wall scones go, the edge of the backplate for my middle sconce is 6-3/4” from the mirror. The edge of the right sconce backplate is 6-1/4 inches from the mirror and the edge of the left sconce backplate is 7-1/4” Never know that there was a differnce until I measured right now. Not sure why that is but I’m guessing it had to do with the 2x4s in the wall and where they could attach the electric box too. With all that being said, I sure noone will notice there is a slight difference in spacing from the mirror in your daughters bathroom.

And just in case you are interested, this is how the multiple switches look in one box.

The fourth switch is our exhaust fan which is on a timer to shut off automatically after the desired amount of venting. I highly recommend a timer switch.

Thanks badgergal. your sconces look great. i guess an inch won’t matter!

where are your recessed lights located? in the middle of the room or closer to your vanity