that data is avg resting heart rate during sleep. not temp.
your (or least mine) pulse is elevated when your body is fighting an infection. my doctor casually mentioned this at my appt on friday when he checked my vitals. so it's neat to see that reflected in my apple watch data (in the 70s, whereas its usually in the 50s).
what's really cool is checking the line graph of my heart rate over night and see it spike...right when i woke up to completely sweat-soaked sheets.
to actually see your body fight an infection in real time, using your heart rate data, is pretty impressive.
#strepsucks