Clinical Research Directory

Inclusion Criteria: * Diagnosed with Diabetes Mellitus type 2 for longer than 3 months * Participant is willing and able to give informed consent to take part in the study. * Sleep disorder symptom checklist 25 (SDS-CL-25) of ≥5 on insomnia criteria. * Not at high risk of undiagnosed Obstructive Sleep Apnoea (OSA), scoring ≥5 on STOP BANG scale (snoring, tired, observed, pressure, body mass index, age, neck size, gender) diagnosed treated OSA is acceptable. * Glycated haemoglobin (HbA1c) of 10% or less (86 mmol/mol) or less * Male or Females. * ≥ 18 ≤ 75 years of age. * Able to walk without the use of an assistive device or requiring assistance from another person. * Not undertaking more than 75 minutes a week of strenuous exercise or sport. * Not taking opioids * Be treatment stable for at least 3 months * Accelerometer measurement of SE ≤ 85% * An understanding that CBTi may exacerbate sleep deprivation in the short term which may impact on certain aspects of daily life. Exclusion Criteria: * Individuals living with narcolepsy or diagnosed parasomnia * Individuals with type 1 diabetes or gestational diabetes * Recent cardiovascular event (within the last 6 months). * Currently on opioids * Diagnosed with borderline personality disorder, psychosis, adult attention deficit hyperactivity disorder (ADHD) or schizophrenia (self-reported). * Individuals living with epilepsy or seizures. * Shift workers * Female participant planning to become pregnant with the timeframe of the study or is currently pregnant. * Terminal illness.