Sleep and Circadian Interventions for College Students at High Risk of Suicide

Inclusion Criteria: * Enrolled or planning to enroll in treatment at COSTAR Intensive Outpatient Program * English language fluency and literacy sufficient to engage in study protocol * Suicidal ideation or suicide attempt in past month * Clinically significant sleep disturbance, operationalized as Pittsburgh Sleep Quality Index global PSQI score \>= 7, and/or delayed bedtimes (\>midnight), and/or \>2 hours in sleep timing variability Exclusion Criteria: * Non-affective psychosis per electronic health record (EHR) review and/or baseline clinical assessment, or symptom severity or psychosocial functioning impairments that preclude participation * Contraindications for either sleep deprivation or bright light therapy (e.g., bipolar disorder; seizure disorder; photosensitizing medication) * Intellectual disability precluding comprehension of study procedures * Evidence of untreated obstructive sleep apnea and/or restless legs syndrome * Life-threatening medical condition requiring immediate treatment (such as cancer; end stage disease) * Pregnancy