Sleep hygienists blame screens, caffeine and irregular bedtimes for the 2 a.m. thought parade, then prescribe an app.
Try governance instead: give your worries office hours. When “did I ever reply to that email” arrives at 2:14 a.m., inform it the next available slot is 15:00 on Thursday, and roll over. Our researchers report the worries do attend — punctual, agenda in hand — but at 15:00 you are in a meeting, so they reschedule themselves for 2 a.m.