Inclusion Criteria:  60+ yrs of age meet criteria for mild cognitive impairment no neurological or psychiatric illness or dementia non-gamers (<2 hour of video/brain training games/week over last 2 yrs) proficient in English (reading and writing) meet clinical dx criteria for Insomnia (e.g., insomnia complaints for 6+ months, complaints occur despite adequate opportunity and circumstances for sleep, consist of one of the following: difficulty falling asleep, staying asleep, or waking up too early, and daytime dysfunction due to insomnia)  Exclusion Criteria:  unable to provide informed consent unable to undergo randomization other sleep disorder (e.g., sleep apnea, restless legs syndrome) severe untreated psychiatric comorbidity psychotropic or other medications that alter sleep (unless stabilized for 6 months) uncorrected visual/auditory impairments participation in nonpharmacological tx for sleep/fatigue/mood/cognition outside the current study