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. 2021 Mar 23;7(3):303–313. doi: 10.1016/j.sleh.2021.02.008

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© 2021 Published by Elsevier Inc. on behalf of National Sleep Foundation.

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Fig 3 — Prevalence of categorical changes in sleep duration from January to April. Prevalence of categorical changes in sleep duration from January to April. Stratified across gender and age groups, those whose mean sleep duration changed by <15 minutes in either direction are classified as “maintained” whereas those whose sleep duration increased by 15-30 minutes or >30 minutes are indicated. Increases in sleep duration were more common than decreases.