Pilot Testing a Digital Intervention to Improve Smoking Cessation in Persons With Serious Mental Illness

Inclusion Criteria: * Age 18 or greater * Diagnosis of serious mental illness (schizophrenia, schizoaffective disorder, bipolar disorder, or major depression) * Current smoker \[prior to admission, smoked at least one cigarette or small cigar per day in the past month (unless restricted, e.g. due to ER/hospital visit) and smoked at least 100 cigarettes lifetime\] * Interested in remaining quit after hospital discharge or quitting within the following 30 days * Expected Internet use at least 3 times/week post-discharge and ownership of mobile device with text messaging plan post-discharge. * Discharge destination within 1-hour of SPH given that Aim 3 involves biochemical verification (carbon monoxide testing). * Reading competence as demonstrated by a score of \>= 37 on the Word Reading subtest of the Wide Range Achievement Test - 4th Edition (WRAT-4)168 to ensure the ability to engage in the intervention. Exclusion Criteria: * Intellectual disability (DSM5 317, 318), traumatic brain injury, or deafness. * Homeless prior to admission or anticipated to be homeless at discharge. * Discharge to a residential setting where smoking is prohibited. * Medical condition for which the use of nicotine replacement therapy (NRT) is contraindicated including pregnant, planning to become pregnant, or breastfeeding; within 4 weeks post myocardial infarction; severe arrhythmia, severe angina pectoris; peptic ulcer; severe renal failure; poorly controlled insulin-dependent diabetes; severely…