Encyclopaedia Britannica outlines the basics of sleep hygiene.
United States of America
Documentary
11 minutes
1950
Encyclopædia Britannica Films
2012
0.0
1952
3.0
2019
8.5
2019
0.0
2020
0.0
2002
7.3
2017
7.0
2021
7.0
2020
0.0
1959
0.0
2013
6.8
2023
0.0
2023
0.0
2014
8.5
2008
6.2
2023
0.0
2016
8.5
2013
7.0
1956
5.7
2013
8.0