The Effects of Sleep Variability in Youth

The University of Hong Kong (HKU)

Status: Completed

Conditions: Sleep Variability

Treatments: Behavioral: Irregular sleep

Study type: Interventional

Funder types: Other

Identifiers

NCT04263428

EA1708030

Details and patient eligibility

About

Daily sleep variability is prevalent in the young populations, yet its effects remain less clear. The experimental study aims to examine the impacts of intraindividual daily sleep variability on sleep characteristics, cardiometabolic regulations and daytime functioning in college students.

Enrollment: 41 patients

Sex: All

Ages: 18 to 25 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Habitual sleep duration > 7 h/day.

Exclusion criteria

• Extreme morning- nor extreme evening-chronotype
• With sleep problems
• With mood and anxiety problems
• With excessive daytime sleepiness
• Have history of any chronic medical condition and on regular medication.

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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41 participants in 2 patient groups

Irregular sleep

Experimental group

Description:

Participants sleep in lab while being monitored with polysomnography for 8 consecutive nights, including an adaptation night and a baseline night of 7.5 h time in bed (0:00-7:30). Afterwards, they are instructed to sleep in bed on a schedule alternated between 6 h, i.e. 1:30-7:30, and 9 h, i.e. 22:30-7:30).

Treatment:

Behavioral: Irregular sleep

Regular sleep

No Intervention group

Description:

Participants sleep in lab while being monitored with polysomnography for 8 consecutive nights of 7.5 h time in bed (0:00-7:30).