Improving Sleep in Gynecologic Cancer Survivors

Inclusion Criteria:

* History of Stage I, II, or III gynecologic cancer
* Age 18+ years
* English language proficiency
* Current sleep disturbance demonstrated by a Pittsburgh Sleep Quality Index (PSQI) score \> 5
* Usual sleep onset time between 9:00PM and 3:00AM
* Reliable telephone and Internet access

Exclusion Criteria:

* Stage IV disease
* Diagnosed or suspected psychiatric or medical condition that may interfere with participation (e.g., psychosis, dementia, bipolar disorder, abuse of alcohol or illicit substances within the past 6 months, narrow angle glaucoma, retinal disorders, epilepsy or a similar condition)
* Diagnosed sleep apnea, narcolepsy, periodic limb movement disorder, or restless legs syndrome unless well controlled
* Use of medications that may be contraindications for study procedures due to safety concerns or due to potential impact on intervention efficacy or assessment validity (e.g., sedatives/hypnotics), to be identified on a case-by-case basis
* Shift worker
* Severe physical or cognitive impairment (≥ 2 errors on a brief six-item version of the Mini Mental State Exam \[MMSE\] or Patient Reported Functional Status \[PRFS\] score \> 2, which is based on the Eastern Cooperative Oncology Group \[ECOG\]but has been modified to be in lay language)
* Plans to travel across 3 or more meridians/time zones during the 6 intervention weeks or plans to cross any meridians/time zones during the 2 weeks leading up to wearing an actiwatch.
* History of a primary diagnosis of a distinct non-gynecologic or non-skin cancer other than a non-melanoma skin cancer within the 5 years prior to enrollment
* For participants with Stage III ovarian cancer: less than 2 years post-completion of primary gynecologic cancer treatment and/or less than 60 days post-surgery. For patients with any other gynecologic cancer/stage: less than 30 days post-completion of primary gynecologic cancer treatment and/or less than 60 days post-surgical intervention (e.g., hysterectomy)
* Male
* Have received CBT-I or systematic bright light therapy within the past 6 months