Been having lots of weird things happening with my Hue bulbs, lately. Lights going on at times or going off. I first blamed SmartThings. But it turns out that is Hue-Nest integration, believe it or not. Somehow, after last Hue App (or Nest app) update, four Hue routines have been automatically created. To check if yours are active, go to Hue app, then click “Routines” then “… From Other Apps”.