Sleep hygiene behaviours in Iranian adolescents: an application of the Theory of Planned Behavior

Summary Poor sleep quality and inadequate sleep in adolescents are a rising trend globally. The Theory of Planned Behaviour ( TPB )—which centres on an individual's attitude toward performing the behaviour, subjective norms and perceived behavioural control—has been applied to examine sleep hygiene behaviours in young adults. We expanded on prior works by using a longitudinal design to examine the effects of TPB factors, together with sleep...