Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Average size of treatment effects (Cohen’s d) on sleep variables from meta-analyses reporting effect sizes.
Abbreviations: SOL, sleep onset latency; WASO, wake time after sleep onset; TST, total sleep time; NWAK, number of awakenings; SQR, sleep quality rating; SE, sleep efficiency.
