I coach kids, and false reporting has become an issue recently. We take every report seriously and have to investigate/escalate each case individually. I have seen two different teenagers admit to maliciously reporting another kid when their stories were questioned or enough time had passed that they no longer felt vengeful toward the other person. The systems for reporting bullying/abuse/crimes are a huge step in the right direction from the past strategy of ignorance. I don’t know how to impart to kids that false claims damage the entire social system we have in place for keeping them safe.
Excersice. I know, it sounds trite. But working out has helped me sleep more soundly despite getting less sleep. I have a few weights in my basement and when my kid is sleeping, I go downstairs and lift heavily. Especially leg workouts, your legs are a huge portion of your body and getting those muscles working is great. It usually takes me ~20 minutes to workup a sweat. Before I had a child I used to try cardio for longer periods of time. But I am more satisfied with short, difficult strength workouts.