Seems promising so far, but it did seem to break when I tried to go to sleep the second time. Looking forward to this!
Viewing post in Vivienne: The Shut-In Succubus comments
It's not just the second time, sleeping on all even-numbered nights is broken. Just drops down a grey overlay and stops responding.
In the downloaded version you can get past this by Alt+F4ing the game closed, then re-opening it and loading the autosave. However it's breaking, it remembers to increment the night number, so you can get to another odd night and have it work OK for another round.