The literature on Sleep-Disordered Breathing (SDB) is clear that the symptoms of the condition are far-reaching and affect many domains of functioning. The treatment of SDB with Continuous Positive Airway Pressure (CPAP) has been shown to be extremely effective. What is not clear, however, is what effect this treatment has on marital and sexual satisfaction. In the current study, individuals (n=55) were assessed over 30 days to assess if treatment of SDB with CPAP resulted in significant improvements in levels of marital and sexual satisfaction. Marital satisfaction was assessed with the Dyadic Adjustment Scale (DAS), and sexual satisfaction was measured with a subscale on the Interpersonal Exchange Model of Sexual Satisfaction Questionnaire (IEMSS) before and after CPAP treatment. The data were analyzed by running two multiple regression analyses. The hypotheses predicted that participants would report significant improvements in marital and sexual satisfaction as a result of CPAP use, and that these variables would significantly increase as CPAP compliance increased. The findings did not confirm these hypotheses, though a possible trend was found for the first hypothesis. Mediator and moderator analyses determined that the sleeping arrangements of partners did not have a significant impact on the relationship between CPAP use and marital satisfaction or CPAP use and sexual satisfaction. Finally, it was shown that older individuals, or those who had been in relationships longer, were more likely to adhere to CPAP treatment. The implications of these findings and directions for future research are discussed.