Battery Drainer!!

The app does what it says but even with DND turned on, my less than a month old Apple Watch battery gets drained.
Sleeping 7 to 8 hours the battery is depleted from approximately 95% to less than 20%. No other apps are running.
Would be worth the money if this was fixed or I knew how to fix this problem.

jimcul about Sleep Tracker - Sleep Pulse 3, v2.03