Brief Behavioral Treatment of Insomnia in Military Veterans: Phase 1

Inclusion Criteria: 1. Age is 18 and older. 2. Military returnees from OIF/OEF 3. Meet diagnostic criteria for chronic insomnia as defined by: * a. Complaint of sleep latency \>30 minutes, or wake time after sleep onset \>30 minutes, or Sleep Efficiency \<85%, or a complaint of non-restorative sleep; * b. Frequency of insomnia complaint \>3 times per week; * c. Duration of insomnia complaint \>1 month * d. Associated with at least one daytime consequences 4. If using sleep medications, medication and dosage have not been changed in the past month, and will remain unchanged for the duration of the acute treatment phase of the study (i.e., 4 weeks) 5. If using other psychotropic medications, medication and dosage have not been changed in the past 2 months, and will remain unchanged for the duration of the acute treatment phase of the study (i.e., 4 weeks) Exclusion Criteria: 1. Active duty personnel, or reservists/national guards scheduled for re-deployment over the following eight months 2. Untreated, current, and severe PTSD as determined on the SCID. 3. Untreated, current, and severe Major Depressive Disorder as determined by the Structured Clinical Interview for DSM-IV and a score \> 30 on the Beck Depression Inventory 4. Psychotic or bipolar disorder 5. Current substance or alcohol use disorder as determined by the SCID or by positive drug toxicology results 6. Unstable medical condition 7. Hospitalization in the previous 2 weeks for a medical condition or surgery for which recovery overlaps with the study onset and duration 8. Seizure disorder or traumatic brain injury. 9. Current sleep disorders such as nightmare disorder, restless legs syndrome, or suspected sleep disorder requiring polysomnographic assessment, such as obstructive sleep apnea or periodic leg movements. 10. Sleep apnea revealed during the screening sleep study. 11. Pregnancy.