As longtime readers of my blog know, in 2011, carrying my first child, I became obsessed with the question of whether pregnant women could lie on their backs–either for short periods of time, such as during a yoga class, or while asleep at night.
Several OBs told me to avoid lying on my back. But their justifications were murky, and their advice conflicting. Not a one could point to a single published study backing this advice up. And when asked at what point in pregnancy I needed to start avoiding back sleeping, their answers were all over the place. One told me it was verboten from 4 months on, another from 5 months on, and the third claimed I should worry only in the last month or so.
Sleeping with a bowling ball-sized stomach is challenging, to say the least. At the same time, groundless sleep prohibitions with vague but terrifying warnings that you might harm your baby are immensely frustrating, and yet almost impossible to disregard.
But while in 2011, these dire warnings sounded like a yet another pregnancy prohibition in search of a reason (no Brie, not a drop of alcohol, keep your heart rate below 140 while exercising, etc., etc.), several studies (one from Australia, two from New Zealand, one from Ghana, and the latest, from the UK) have since found that back sleep may indeed be linked to what is termed late stillbirth, or pregnancy loss after 28 weeks.