A study abstract provided by BioMed Central discusses a study that aimed to examine the natural development and stability of insomnia and short sleep duration in women from pregnancy to two years postpartum.

This was a longitudinal cohort study (the Akershus Birth Cohort Study) of 1480 healthy women, who completed three comprehensive health surveys, at week 32 of pregnancy, week 8 postpartum and year 2 postpartum. The survey was composed of the following validated questionnaires: the Bergen Insomnia Scale, the Pittsburgh Sleep Quality Index and the Edinburgh Postnatal Depression Scale.

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