Conclusion
Our cohort study is among the first to show the correlation between
sleep and blood pressure throughout pregnancy in the population without
pre-existing hypertensive disorder. Most significant correlation was
found in the first trimester. Uterine artery doppler was worse in poorer
sleepers suggesting a potential association between sleep and placental
function which may affect blood pressure. Future studies should focus on
interventions to improve sleep antenatally with an effort to optimize
blood pressure and pregnancy outcome.