I noticed that my HP only really goes to sleep if I close the lid WHEN UNPLUGGED (Windows settings get ignored or whatever reason). In case other laptops work the same, glad to be of help :)
Bravo, what an excellent design.
PS. A related video from LTT: https://www.youtube.com/watch?v=OHKKcd3sx2c
I've battled this for a long time. The prospect of having my laptop be and stay charged is exciting.