Same here. lol
Sorry if this is way too off-topic and/or if it’s already been discussed in your context, but…
As you may know, there are a number of projects in the works to add cheap Android/other devices to the mix by mounting them on walls around the house and running SmartTiles on them.
Then, in order to NOT have the ambient light, there are ways to get motion (or other) triggers sent to the device to turn the screen on when you want to go up to it to view what’s on it or interact with it (e.g. How To Send Sensor Triggers to Android and Have Android React - #17 by sgnihttrams).
If you did this, you could have a device there and have access to thermostat controls, AND have no ambient light to bother your lady at night.
Now, I may have completely misread that, and this may be completely irrelevant. If so, I’m sorry…please excuse my still noobishness. 
)