Personalized SMSFeasibility of a Personalized SMS Intervention for Insomnia

Participants (N=50) who endorse insomnia will be followed for 8 weeks. All participants will be asked to download a separate app to passively monitor sleep that will inform the personalized messages. Participants will also be asked to respond to daily prompts in order to validate the passive sleep data. The study includes two phases: (1) a training and validation phase and (2) an intervention phase. During phase 1, participants' sleep habits and other behaviors will be monitored for two weeks in order to validate and optimize the SMS personalized sleep intervention (PSI). In phase 2, participants will be transitioned to the intervention phase of the study.

All participants will be enrolled in the intervention to evaluate the feasibility and acceptability of the SMS-PSI. After the data training and validation phase, participants will be provided with at least one and up to three daily text messages that offer users a specific strategy based on strategies from CBTi. All participants will have access to a "user dashboard", which is a web-app that includes personalized sleep-tracking information and the opportunity to customize their messaging. The person-level acceptability and adherence to the sleep strategies will be evaluated via self-report endorsement from daily diary and whether users added suggestions to their calendars. Both adherence and acceptability will be collected and integrated with the selection algorithm to optimize subsequent SMS suggestions.