This study is a validation study to document the acceptability of the Tonic and Phasic Alertness Training (TAPAT) training program in older adults with chronic late-life insomnia. The goal of this study is to employ a computerized attention-training program, TAPAT, designed for chronic late-life insomnia in a randomized, controlled trial to assess feasibility and initial efficacy in this population.

Inclusion Criteria:

• Participant must be between ages 55 and 80.
• Participant must meet current diagnostic criteria for Primary Insomnia Disorder based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5).
• Participant with hypertension must be undergoing treatment for this condition and on a stable medication regimen for hypertension for ≥ 8 weeks prior to screening.
• Participant must be a fluent English speaker
• Participant must have adequate visual, auditory, and motor capacity to use computerized intervention
• Participant must be willing to wear Microsoft Band 2 watch to track sleep patterns

Exclusion Criteria:

• Participants with cognitive impairment, delirium or dementia, or evidence of cognitive impairment from a pre-existing cause.
• Participants with untreated psychiatric conditions, including substance abuse/dependence disorders, untreated obstructive sleep apnea, diagnosis of other sleep disorders (e.g., restless legs syndrome), recent hospitalization, ongoing chemotherapy or other cancer treatment, and concurrent engagement in another insomnia treatment.
• Participants enrolled in another concurrent research study.
• Participants who have difficulty performing assessments or comprehending or following spoken instructions, in the judgment of the screening clinician.
• Participants using computer-based cognitive training programs or has used them within a month of the consent date.