My parents house is like that, but there’s a wall with a wide doorway into the area with the vanity, so it’s open but also easy to close off by just putting a curtain rail up. It’s also oriented to the room such that if you only use enough light at the vanity to wash your hands for a midnight potty run, it really isn’t enough to bother someone in the bed if you place the bed sensibly. Getting ready in the morning would be trickier if you needed to do makeup and so on so needed proper lighting, so that’s where a screen or a curtain would come in.

I had the very same dilemma, trying to find a small vanity to put in my powder room (the space had a very inadequate, builder-grade (read: cheap) pedestal sink). We ended up going to Expo Design Center, where one of their vendors (Strasser) lets you custom-design your own vanity, with a range of sizes, styles, door types, stain colors, counter materials, sink types, etc. While this wasn't the cheapest option, it allowed us to get exactly what we wanted. Since nothing "standard" fit the space, it was worthwhile. The new vanity was delivered within about 3 weeks after ordering, and my husband was able to install it within a few hours (including brand new faucet, which we'd purchased separately). I will post a photo later. Here is a link that might be useful: Strasser Vanities

We finished our remodel except for a mirror over the sink and a recessed medicine cabinet on a corner wall... Thought I would post some photos of how,the vessel sink turned out installed recessed as an apron-front sink. The guy doing the remodel used local cabinet shop to fabricate the center 2-door vanity section to accomodate the install, added a stronger bottom shelf for the sink to rest on and cut the normal front stile to fill in the front opening... We used a remnant of Cambria Oakmoor Quartz with gray shadings vs the usual tan for countertop, a bench top in the tub/shower, and the niche bottoms. Found it at the fabricators our contractor favors and they were very good to work with. Pencil edges on all pieces but the tub bench...that is demi bullnose. Tub alcove and wall under window used the DalTile Modern Dimensions white matte 4x12 subway tile w/Florida Tile Bliss Iceland in niche backs. Moen Rothbury chrome single lever faucet for sink and tub/shower. Toilet is AS Town Square toilet, Princeton tub 30x60, and the AS Loft vessel sink... Vanity hardware Milan 6" in chrome...flooring is LVT click install from ProSource--Resista H2O--waterproof...in kind of driftwood gray, fairly uniform Went with a vibrant coral for the walls --SW Coral Reef--made up in Benjamin Moore eggshell and used in the linen closet walls as well. Trim is Super White. Electricians add added a Panasonic exhaust fan with heater/no light--because of joist spacing. Light fixture is from Wayfarer..I wanted a 4 but husband wanted a 3. There is a can in the tub alcove...both lights on dimmers. added a double outlet on corner left of the sink and an outlet behind the vanity, available inside second drawer on right.

This kind of monolithic wall-hung vanity tops are probably custom. If you don't mind white, look at MTI counter-sinks. If you simply want wall hung and would like drawers, look at wall hung vanities like these at DecorPlanet. I am not saying that these are good quality or not, just wanting you to see them for their style. You can have a wall-hung, minimalist vanity with drawers in it. You can search for wall-hung and modern vanities with the size you need at build.com, Qualitybath.com, and Wayfair, too. Duravit and Nameeks are two European companies that also do wall-hung vanities and counter-sinks.