Seeking healthy male participants fluent in English and aged between 35 and 70 years for a study aimed at enhancing deep sleep. Eligible participants will have no current sleep, medical, neurological or psychiatric disorders which affect their sleep, do not currently use medications that affect their sleep, will be non-smokers and not currently using nicotine replacement therapies, will not have been engaged in shift work for the past three years, and will not have travelled across time zones in the past three months.
Data will be collected at the BASE facility in Notting Hill.
The study involves: 1) An initial screening and consent session (up to 3 hours) at the Monash University BASE facility in Notting Hill, 2) one week of pre-laboratory sleep-monitoring at home, 3) a two night stay in the Monash University Sleep and Circadian Medicine Laboratory, located at the BASE facility, 4) a second week of pre-laboratory sleep-monitoring at home, and 5) a second two night stay in the Monash University Sleep and Circadian Medicine Laboratory. During the two at-home monitoring periods, participants will wear a wrist activity monitor to record sleep and wake patterns, and complete a daily sleep diary. The laboratory visit will involve completing frequent neurocognitive test batteries, and wearing a number of devices which monitor sleep and cognitive outcomes.