Inclusion Criteria  Age 19 or above (A minimal age of 19 was chosen in order to align with the cannabis legalization rules of the Province of Ontario, where the research participants will be recruited from: https://www.ontario.ca/page/cannabis-legalization#section-1) Diagnosis of MDD according to the Structured Clinical Interview for DSM-5 (SCID-5) 37 Diagnosis of Insomnia Disorder according to the Duke Structured Interview for Sleep Disorders 38 Patient Health Questionnaire (PHQ-9) 39 score of <10, indicating severity of mild-to-no depression (This criterion is important because a proper diagnosis of current co-morbid insomnia disorder cannot be accurately ascertained during acute major depressive episodes) Participant must be willing and able to complete self-reported assessments, including having sufficient fluency in English Participant must be willing to wear a wrist-worn actiwatch device Participants may be using psychotropic medications for treatment of depression, except benzodiazepines or any other sleep aids, as long as the dosage remains the same from a minimum of 2 months prior to study enrolment until the end of the study (This criterion is important because many individuals with MDD use antidepressant agents and this criterion would make the results more generalizable and useful in real life clinical practice)  Exclusion Criteria  Lifetime diagnosis of Schizophrenia, Bipolar Disorder or any other psychotic disorder, as well as current or recent (last 6 months) Alcohol or Substance Use Disorder according to the SCID-5 Individuals with current diagnosis of Generalized Anxiety Disorder, Panic Disorder, Obsessive-Compulsive Disorder, Post-Traumatic Stress Disorder or Eating Disorder will be excluded because these psychiatric disorders are associated with sleep disturbance; however, because of the high rates of co-morbid psychiatric conditions in MDD lifetime/past diagnosis will be allowed in order for the results to be generalizable and useful in real life clinical practice Current use of benzodiazepines or any other sleep aids Positive screening for drugs of abuse including but not limited to opioids, cannabis, benzodiazepines, cocaine, and/or amphetamines (except prescribed stimulants for comorbid ADHD) Presence of any sleep disorder other than insomnia that is considered the primary diagnosis, determined by the Duke Structured Interview for Sleep Disorders (e.g. Sleep Apnea, Limb Movement Disorder, or Circadian Rhythm Disorders) Presence of unstable medical conditions Pregnancy or breastfeeding (female participants will need to agree to use an acceptable contraceptive method during the study because of potential unknown teratogenic effects of cannabinoids Allergy to cannabis or any components of the cannabis treatment (including terpenes)