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PrenaBelt™ Research

PrenaBelt®  – Est. 2013. That's right. For every month of human pregnancy, we've spent more than one year working on PrenaBelt®  research and development! 

In response to early studies published about the possible impact of sleeping position in late pregnancy on adverse pregnancy outcomes (see our Sleeping Position in Pregnancy page for more information),[1,2] we began developing and testing the PrenaBelt®  in 2013. 

From 2013 to 2019, we and our collaborators tested the PrenaBelt®  in three clinical research studies, and our results were published in peer-reviewed medical journals (Accra TrialHalifax TrialAdelaide Trial).[3-5] We also presented our research findings at multiple international medical conferences. The PrenaBelt®  research studies represent over 250 research participants in their third trimester, nearly 17,000 nights of study, three university-affiliated teaching hospitals, and a dozen investigators. Since completing these studies, we have optimized the PrenaBelt®  design based on feedback from our research participants and have continued to test the optimized PrenaBelt®  in clinical research. The optimized PrenaBelt®  has also undergone testing by beta users in late pregnancy throughout North America and New Zealand.

PrenaBelt®  research is only half of the story  PrenaBelt®  development is the other half! The PrenaBelt®  is backed by a multidisciplinary team of dedicated professionals who are working around the clock to make it available for pregnancies in Canada and around the world.

Click/tap here to learn more about the development of our product, the PrenaBelt® .




  1. Stacey T, et al. Association between maternal sleep practices and risk of late stillbirth: a case-control study. BMJ. 2011.
  2. Owusu JT, et al. Association of maternal sleep practices with pre-eclampsia, low birth weight, and stillbirth among Ghanaian women. Int J Gynaecol Obstet, 2013.
  3. Coleman J, et al. The Ghana PrenaBelt trial: a double-blind, sham-controlled, randomised clinical trial to evaluate the effect of maternal positional therapy during third-trimester sleep on birth weight. BMJ Open, 2019.
  4. Kember AJ, et al. Modifying maternal sleep position in the third trimester of pregnancy with positional therapy: a randomised pilot trial. BMJ Open, 2018.
  5. Warland J, et al. Modifying maternal sleep position in late pregnancy through positional therapy: A feasibility study. J Clin Sleep Med, 2018.
Disclaimer: The information provided on this page is for informational purposes only and is not professional medical advice, diagnosis, treatment, or care, nor is it intended to be a substitute therefore.

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