In my main bathroom (with tub/shower combo), I was initially intending to install wood baseboard around the room and ended up trimming out the edge of the tub/shower with bullnose tile and then carried the bullnose tile around the room instead of wood baseboard. It was not my initial plan, but I'm really pleased with the result. The trim around the door is still wood and it goes all the way down to the floor with the tile baseboard butted up against it. I just thought I would mention it in case you wanted to give some thought to using bullnose instead of wood.

If your thermostat is not working... https://www.heating-air-conditioning.org/ 1. Positioning in the House You will have thermostat issues if your thermostat is not correctly placed in your home. You don’t want your thermostat to be in direct sunlight, and it should be no more than 5 feet from the door. Having it placed in the right spot is critical because the thermostat is what controls when your HVAC system operates. In sunlight, for example, the thermostat will read the house as much warmer than it is, and your air conditioning will run constantly or your heater not enough. This is also true if your thermostat is too close to a heat source of any kind. Make sure that the thermostat is centrally located and away from heat sources and direct sunlight. If it isn’t, contact an HVAC professional to have it moved. Thermostat Is Not Level This is a big problem on older thermostats, especially as houses settle and shift. If the thermostat is not level it won’t work as intended. Mercury bulb thermostats require that they are level in order to function properly. If your thermostat is not level, the thermometer in them will not operate the right way. This will make the thermostat almost useless as it won’t keep up with the correct temperature in your home. Your Thermostat Is Old Older thermostats have a lot more problems than newer ones. Like all parts of your HVAC system, thermostats are not going to last forever. The older a thermostat is the higher a chance it will be broken. Consider replacing the thermostat with a modern, programmable thermostat. This will alleviate any sort of problem you might be having and will ensure years of good operation.

BM Aura is very nice paint. I have only used it once. (IIRC, it was originally formulated for very deep, rich colors.) If low traffic & no children, it should be fine for your walls. I used it in a dark navy on a couple of nightstands, and it has stayed a little soft. Because of that, I wouldn't recommend it for trim. If you haven't bought your wall paint yet, take a look at Scuff X. The sheen level in Scuff X runs a little higher, but it also comes in matte. It is great paint! We have it on the walls and trim in our lower level. (For the trim, it was sprayed.)

I would entertain the idea of not doing the return. I think it might be less visible, but the downside is that it could look less finished.. it’s a clean, modern baseboard, I would try to not complicate it. Is your wall corner slightly rounded/angled, I cannot tell…?