Lots. 1. The heart rate line graph during my sleep made me realize just how bad exercise within 6 hours of bed is. My resting heart rate is 43bpm, yet if I exe

Lots. 1. The heart rate line graph during my sleep made me realize just how bad exercise within 6 hours of bed is. My resting heart rate is 43bpm, yet if I exercise, I'll try to sleep at 60bpm that slowly decreases to 45bpm over 4-6 hours. And it always coincides with worse sleep. 2. I realized how often my HR jumps during sleep. Turns out I have a deviated septum that got bad enough in my 30s to regularly block breathing. I thought I had sleep apnea that would require a CPAP but it turns out I just need nasal strips. No more problems. 3. If you see you have bad sleep, you can now ask the question "how do I improve my sleep?" If you don't know you have bad sleep because you think you're sleeping 8 hours, then you don't realize you have levers to pull.