Resting Heart rate being calculated during sleep.

I use the app “Auto Sleep” to track my sleep with my Apple Watch, but the health app uses the first few hours of the day while I’m asleep to calculate my resting heart rate, which seems to stick for the rest of the day. I would really like to know my resting heart rate while I’m awake, not my sleeping resting heart rate. Is there a way to exclude heart rate information that overlaps with sleep periods?