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Optimizing Preanesthesia Care for the Gynecologic Patient.

studies. Although recall bias is an acknowledged limitation of these studies,2 our goal is to acknowledge limitations regarding our current knowledge and further a discussion and more studies to refine our ability to optimize sleep and pregnancy. We also want to underscore the potential downsides of advising women regarding sleep position. The link between adequate sleep and perinatal mental health deserves weight and attention. The CRIBBS collaborators have been admirably mindful of these downsides and have taken steps to minimize them. We support the recommendations of McCowan et al regarding sleep position at the end of pregnancy. Data are imperfect, but their recommendations are based on the best evidence that is currently available. Although we were meticulous about stating that our study is not applicable to the end of pregnancy, there is often creep regarding the scope and applicability of clinical data. In addition, we live in a sound-bite culture where headlines or conclusions may be distilled down to, “sleeping on your back is safe in pregnancy.” We should not allow the results of this article to be misconstrued, and we must all take the time to communicate accurately with women about what we know and don’t know.