Using ecological momentary assessment to assess the temporal relationship between sleep quality and cravings in individuals recovering from substance use disorders

EMA methodology allowed for disentanglement of the temporal relationship between sleep and cravings. We found support for the resource depletion hypothesis, operationalized by linking sleep quality to cravings via willpower. However, the magnitude of the association between sleep quality and cravings was stronger at the between-person level, suggesting a potentially cumulative effect of poor sleep on cravings. These results suggest that clinicians should ask patients about chronic sleep problems, as these may pose a risk for relapse.