The Relationship between Sleep Hygiene, Mood, and Insomnia Symptoms in Men with Prostate Cancer

Abstract PurposeInsomnia symptoms are commonly experienced by men after prostate cancer (PCa) treatment. Here we explored how sleep hygiene behaviours and psychological symptoms are associated with insomnia symptoms in PCa patients.MethodsAn online survey was posted on social media and sent to mailing lists of PCa and general cancer organisations. The survey collected information on demographic, sleep hygiene and psychological symptoms using validated questionnaires. ResultsData from 142 participants were compared based on the absence (age = 68.3 ± 8.9 years) and presence (age = 66.6 ± 9.0 years) of insomnia symptoms. Participants with insomnia symptoms had significantly higher levels of anxiety, depression, fatigue, and daytime sleepiness as well as poorer sleep hygiene than those without insomnia symptoms. Control variables (age, comorbidities, ADT experience and BMI) accounted for 12.5% of the variance in insomnia symptoms. Adding sleepiness, fatigue, anxiety, depressive symptoms to the model explained an additional 45.1% of the variance in insomnia symptoms. Further, including the sleep hygiene item “I think, plan, or worry when I am in bed” and “I sleep in an uncomfortable bedroom” explained an additional 3.6% of the variance in insomnia symptoms. ConclusionsPoor sleep hygiene, fatigue, daytime sleepiness, anxiety, depressive symptoms were all associated with worse insomnia symptoms in PCa patients. Improving sleep hygiene and treating psychological conditions may potentially help prevent and/or alleviate insomnia symptoms in PCa patients.