The Sleep-pain Relationship in Women with Endometriosis

Inclusion Criteria: * Adult premenopausal women with a laparoscopic and histopathological diagnosis of endometriosis, without a history of hysterectomy, experiencing cyclic or chronic pelvic pain for 3 months or longer, with pain intensity of at least 3 out of 10 over the past 3 months, experiencing non-restorative sleep (defined as a subjective feeling of being unrefreshed up-on awakening) for 3 months or longer, in the absence of elevated risk for intrinsic sleep disorders (such as sleep apnea or restless leg syndrome), and having sufficient knowledge of either French, Dutch, or English Exclusion Criteria: * Participants younger than 18 years old, without laparoscopic and histopathological diagnosis of endometriosis, participants with a hysterectomy or pain intensity lower than 3/10, with restorative sleep or sleep apnea and restless leg syndrome, shift work and insufficient knowledge of either French, Dutch or English.