Associate professor Ellen Mikkelsen, MPH, PhD, has received a grant of DKK 354,900 from Trygfonden for a study on sleep, perceived stress and the risk of spontaneous abortion. Female participants in the online questionnaire study SnartForældre.dk will be invited to participate in a substudy where they via an app on their mobile phone fill in a sleep diary for two times two weeks. Information on perceived stress is collected in the questionnaire.