What are the dimensions for your mirrors? No one can help you without that info - unless you haven't purchased them yet, and would like suggestions re: size.

I would find a sconce that also has a double lighted matching option. The wider double lighted sconce can be used between the mirrors since there will be extra space. I assume that you're centering your mirrors over your sinks.

I have 78" vanity with 2 recessed medicine cabinets that are 20" wide and it was hard fitting most sconces on either side. I found a linear sconce that was 3" wide and would fit. Like Dani mentioned, the middle sconce when centered will be further away from the mirror, than the ones placed on the outside.

This does bother me a bit, but it is a secondary bathroom and I rarely go in there! In hindsight I probably should have done lights above each mirror.

This is the narrow sconce I used.

The practical option:

- One nicely done sink in the middle of the 78". Finish the area with easier to keep clean wall-mounted faucets.

- A nice big 30" drawer stack on each side of the sink, allowing each spouse ample storage -- removes the need for medicine cabinets.

- One large mirror stretched across the vanity top. A large mirror will give you a better /larger view and will brighten your space.

- Go with pendant lights flanking the sink and place them on a dimmer switch.