Clinical Research Directory

Inclusion Criteria: * Healthy male or female adult between the ages of 18 and 39 years of age. * Have a stable sleep/wake schedule (bedtime between 9pm and 1am and wake time between 6am and 10am at least 5 nights per week) * Are a fluent English speaker * Diet which is low in magnesium * Self-identify as a poor sleeper (i.e. poor sleep quality or unrefreshing sleep). Exclusion Criteria: * Have symptoms of COVID-19 * Display evidence of current or recent sleep disorders (e.g. sleep apnea, insomnia, circadian rhythm disorders); an initial screening for sleep disorders will be conducted using the Sleep Disorders Screening Checklist - 25 (SDS-CL). Have a history of seizures or epilepsy * Have recently (within the last 12 weeks) had an infection and/or used antibiotic medication * Are pregnant, seeking to become pregnant or lactating * Are a shift worker or a recent history of shift work in the previous 6 months * Are participating in other intervention research trials * Have experienced travel across multiple time zones within the last three months or will be experiencing travel across multiple time zones during the study. * Have recently been diagnosed and/or treated for a mental health or substance use disorder. * Are currently unwell with anything that impacts sleep. * Are taking any medication which has a sedative effect * Are currently using medication which affects the central nervous system. * Are currently misusing alcohol or drugs.