Minimum number of nights for reliable estimation of habitual sleep using a consumer sleep tracker.

ABSTRACT:

Study objectives

To determine the minimum number of nights required to reliably estimate weekly and monthly mean sleep duration and sleep variability measures from a consumer sleep technology (CST) device (Fitbit).

Methods

Data comprised 107 144 nights from 1041 working adults aged 21-40 years. Intraclass correlation (ICC) analyses were conducted on both weekly and monthly time windows to determine the number of nights required to achieve ICC values of 0.60 and 0.80, corresponding to "good" and "very good" reliability thresholds. These minimum numbers were then validated on data collected 1-month and 1-year later.

Results

Minimally, 3 and 5 nights were required to obtain "good" and "very good" mean weekly total sleep time (TST) estimates, while 5 and 10 nights were re

SUBMITTER: Lau T 

PROVIDER: S-EPMC10104388 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature