Inclusion Criteria:  Had diagnosed with stroke for at least 3 months (chronic phase) Had NIHSS score < 6 Complain insomnia symptom based on the score of ISI> 7 Having sufficient cognitive function to complete tasks, Able to access to internet  Exclusion Criteria:  The people receiving BBTI and other psychological treatment for insomnia Doing shift work Having psychiatric disorders Being pregnant or breastfeeding Having other sleep disorders (e.g., sleep apnea) Drugs or alcohol abuse, Serious or unstable medical condition prior to the study