The body needs sleep to get the recovery that it’s need. Too little sleep or no sleep at all may lead to depression and anxiety. The study’s purpose was to investigate how young adults experience their sleeping habits and what they consider affect their sleep. The method used was a qualitative interview study, the form of the interviews was semi-structured interviews and interviews by e-mail. The study’s result shows that young adults experience of sleep could be divided into two categories; the absence of the good sleep and experience of factors that affect the sleep. The informants experienced their sleeping habits as varying and that they had a regular bedtime but a varying sleep onset time. Young adults experienced that their sleep was affected positively by physical activity and negatively by cellphone as well as stress and anxiety Conclusion: Young adult get limited knowledge about sleep and why sleep is important in primary school which lead to that they don’t get the necessary knowledge about which consequences are related to too little and/or poor sleep. Giving sleep education in school gives the students the opportunity to prioritize their sleep. From a public health perspective, sleep is a determining factor to god health which makes the sleep education relevant to schools to work with health promotion activities.