Too much sleep (and even too less) can result in weight gain among pregnant women

Pregnant women oversleeping and undersleeping both, are prone to adverse health outcomes. (Source: Thinkstock Images)

Both too short and too long sleep duration in pregnancy are associated with extremes of gestational weight gain, says a new study.

“We know that poor sleep in pregnancy has been linked to adverse pregnancy outcomes,” said one of the researchers, Francesca Facco, from Magee-Womens Research Institute, University of Pittsburgh in the US. “Our findings provide a potential mechanism for poor sleep in pregnancy and adverse outcomes,” Facco added.

The study involved 751 pregnant women who had no previous pregnancies. They were recruited to wear an actigraph — a device that uses a non-invasive method of monitoring human rest/activity cycles — to record objective sleep activity for seven consecutive days. Women with pregestational diabetes and chronic hypertension were excluded from the study.

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Sleep duration was calculated as an average across study nights.

While the majority of women — 74.8 per cent — had a sleep duration between seven and nine hours, the data suggested that both short and long sleep duration in pregnancy are associated with gestational weight gain.

The findings will be presented at the Society for Maternal-Fetal Medicine’s annual meeting in Atlanta, US.

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