Being interrupted during sleep is likely to affect your mood more than not getting enough sleep, a study suggests.
Researchers at the John Hopkins University School of Medicine in Baltimore, Maryland, USA studied 62 men and women and split them into three experimental conditions.
One group were subject to “forced awakenings” during sleep, others went to bed late and the last group went to sleep uninterrupted.
The study analysed the participants over three days and published their research in the journal Sleep.
The group who were regularly woken displayed a “low positive mood” after the first night, however after the second had a reduction of 31 per cent in positive mood.