Inclusion Criteria:  • Age between 22-64 years  English-speaking (both reading and writing in English required) Diagnosis of chronic insomnia Participant is willing and able to give consent and participate in study Participant has an email account or is willing to create one and a smartphone able to download the necessary applications Participant is willing and able to use the PDT, the Hugo data sharing platform and the syncable devices (e.g. Fitbit) Participant has primary care at YNHH or Mayo Clinic  Exclusion Criteria:  Pregnancy Shift work or family/other commitments that interfere with establishment of regular night-time sleep patterns, and if wake/sleep time is outside the ranges of 4:00h - 10:00h (wake time) and 20:00h - 02:00h (bed time) Absence of a reliable internet access and smartphone A reported diagnosis of psychosis, schizophrenia or bipolar disorder, or any medical disorders contraindicated with sleep restriction Current involvement in a non-medication treatment program for insomnia (participants are still eligible if they are taking traditional sleep medications) Those with untreated co-existing sleep conditions (e.g. sleep apnea) Those who have failed CBT for insomnia in the past