morning resting heart rate should be the lowest of any time of day.
you literally should wear the HRM strap to bed, with plastic baggie parts under the
electrodes (to save battery life). in the morning, wake up, pull plastic, wet electrodes with
saliva on fingertip and take a reading. do not even roll over once ! for accurate results.
if it is running that high, you are having scary dreams, have to pee, or
have a real issue.