text: A filmed presentation about the four research studies into maternal sleep position and pregnancy that led to the Sleep On Side campaign. Featuring Professor Alex Heazell.
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  Home PregnancyHub Being pregnant Sleep On Side - the research behind the campaign
  20/11/2017
  Today Tommy's is launching the Sleep On Side campaign to let women know that supine sleep (sleeping on back) in late pregnancy put them at higher risk of stillbirth. Professor Alex Heazell led the fourth piece of research that confirmed this link. He has worked with research teams in Australia and New Zealand on maternal sleep position and pregnancy. This film shows Professor Heazell presenting his research to an audience of mums, including some who have suffered stillbirth.
  The research into maternal sleep position and pregnancy
  In 2011 a research trial in New Zealand made links between the risk of stillbirth and babies’ movements, and other factors in pregnancy including, smoking, detection of small babies and the mother’s sleep position. Some of these factors were already known, but some were not. Sleep position in pregnancy was not previously considered to be a risk factor for stillbirth.
  In 2015 another research study in Sydney found that sleep position was linked to stillbirth.
  As both of these research trials were small, it was recommended that further research be carried out to test the hypothesis and the Midlands and North of England Stillbirth Study (MiNESS) was established to take this forwards, funded by Cure Kids (a New Zealand charity), Action Medical Research, Tommy's and Sands.
  At the same time, a similarily-sized multicentre trial was also funded in New Zealand, also by Cure Kids.
  In the MiNESS study, 291 women who had a stillbirth at or after 28 weeks gestation completed a detailed questionnaire and talk to a research midwife about their sleeping habits amongst many other aspects of their pregnancy. They were not told the purpose of the study. These answers were compared with those given by 738 women who had a live birth to see if there are any significant differences in their habits or experiences.
  This study began in July 2014 and concluded in 2017.
  Meanwhile the results of the New Zealand multi-centre trial mentioned above were published. It showed a four-fold increased risk in going to sleep supine (on your back) in late pregnancy. Researchers who took part in this trial called for a public-facing campaign letting women know that going to sleep on your side is safer.
  Today the MiNESS study has been published. Along with all the other studies it has found that women who went to sleep on their back in late pregnancy were twice as likely to have a stillbirth.
  More about sleep position and pregnancy
  Keeping your baby safe in pregnancy
  Read more about 'Keeping your baby safe in pregnancy '
  Sleep position in pregnancy Q&A
  Read more about 'Sleep position in pregnancy Q&A '
  Sleep On Side - a pregnancy campaign
  Read more about 'Sleep On Side - a pregnancy campaign '
  Always Ask - about our safer pregnancy campaign
  Read more about 'Always Ask - about our safer pregnancy campaign '
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