AUTHOR=Spruyt Karen TITLE=Editorial: Sleep in children with rare disorders: Having a sleep problem is not that rare JOURNAL=Frontiers in Neurology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2022.1070414 DOI=10.3389/fneur.2022.1070414 ISSN=1664-2295