Ever since internet was available to most people, the use of screens has increased. Members of the society need to be digital literate to be able to use the digital tools and services. In Sweden, public libraries are assigned the task to support that digital literacy by Kungliga biblioteket. As people spend more time online, questions regarding how screen use impact on health increases, together with a growing interest in restricting one’s own use of digital devices and a growing interest in self-help literature on this topic. The aim of this thesis is to contribute with knowledge regarding how screen use is presented in Swedish self-help literature. To do so, a discourse analysis inspired by Michel Foucault’s thoughts on self-technologies, the relation of language-power and power-knowledge, is performed. Findings: Biological-, economic- and health discourses are used when describing the impact of screen use. Focus is on what activities the screen is used for and not so much on the impact from the screen itself. Screen use is talked about as addictive and is accused of leading to sleeping problems and stress. The solution according to the texts is to balance the screen use by performing self-discipline and control.

Sömn är grundläggande för elitidrottares återhämtning och uppbyggnad. För ungdomar som elitidrottar kan upprätthållande av en god sömnkvalitet, sömnkvantitet och sömnhygien vara utmanande. Det huvudsakliga syftet med studien var att studera skillnader i sömnvanor mellan elitidrottande ungdomar och ungdomar som inte elitidrottar. Undersökningen riktades mot elevers sömnhygien med ett specifikt fokus på skärmanvändande. 504 elever deltog i enkätstudien varav 256 studerade på riksidrottsgymnasium och 248 på vanligt gymnasium. Signifikanta skillnader observerades där elitidrottande ungdomar hade bättre sömnkvalitet och sömnkvantitet, men sämre sömnhygien än jämförelseelever. Skärmanvändande skiljde sig inte mellan grupperna. Resultatet pekade på att elitidrottande ungdomar hade sämre sovmiljö, men bättre sömnhygien när det gällde substansintag och insomningsfördröjande beteenden än jämförelseelever. Ett signifikant samband mellan sömnhygien och sömnkvalitet observerades. Specifika faktorer som predicerade sömnkvalitet hos RIG-elever var skärmanvändande efter sovförsök och uppvaknanden av aviseringar under natten. Slutsatser från studien är att även om elitidrottssatsande elever har bättre sömnkvalitet och sömnkvantitet än elever på jämförelsegymnasium, finns det fortfarande stort utrymme för förbättring. Då elevernas sömnhygien kan anses vara bristfällig, pekar resultatet på att större fokus bör läggas på att ge eleverna optimala förutsättningar för bättre sömn. / Sleep is fundamental for an athlete’s recovery and adaptation. It can be hard for high school athletes to maintain good sleep quality, quantity and hygiene. The main purpose of this study was to examine differences in sleep habits between high school athletes and non-athlete high school adolescents. The students’ sleep hygiene was studied, and specific focus was drawn to screen time. 504 students participated in the survey whereas 256 studied at National Sports High Schools and 248 at a reference high school. Significant differences were observed suggesting that high school athletes had superior sleep quality and sleep quantity, but inferior sleep hygiene compared to the reference group. Screen time did not differ between the groups. The result showed that high school athletes had inferior sleep environment, but superior sleep hygiene regarding substance use and sleep delaying behaviors compared to the reference group. A significant correlation between sleep hygiene and sleep quality was observed. Specific factors predicting sleep quality for high school athletes were screen time after sleep attempt and awakenings due to notifications. The study’s conclusion is that there is still room for improvement even though high school athletes shows superior sleep quality and sleep quantity compared to the reference group. Since the students’ sleep hygiene can be seen as inadequate, the study suggests that interventions to support high school athletes’ optimal sleep should be considered.