For healthy adults, how well you sleep night after night — based on movement tracking — doesn't seem to affect your blood pressure, heart rate, or nervous system activity, even when we account for age, sex, and weight.

For healthy adults, how much you usually sleep doesn’t seem to affect your blood pressure, heart rate, or stress nerve activity — even if you sleep less than average.

In healthy adults, how much or how well you sleep doesn’t seem to affect your resting heart or stress system — at least when sleep is measured objectively, which might mean earlier findings were off.