Limitations
fatigue
The study had some limitations that we recommend solving in future interventions. The study had a small sample size and was from a specific area, so the generalizability of the results is limited. Future research should be conducted in a variety of settings with larger samples to determine these measurement pathways in more detail. Since some results were based on self-reports (PSQI, MEC) from face-to-face interviews, the recording model should be further examined using other measures such as actigraphy or polysomnography, although it is known that due to the cognitive limitations of patients these techniques are complicated to perform. The variables included do not explain all the possible variance, so other possible variables may also mediate the relationship, such as fatigue, self-efficacy, stress, or even the influence of their social and/or family environment.