All Sleep Calculators
Sarah Mitchell

Sarah Mitchell

Sleep Science Writer

Sarah researches sleep science full-time and turns guidance from the AASM, CDC, and National Sleep Foundation into plain-language tools and guides. She writes every guide on this site and checks each claim against the original source.

Sarah's work starts with the sources, not with opinions. Before a guide is drafted, she reads the underlying guidance from the American Academy of Sleep Medicine, the CDC, and the National Sleep Foundation, then writes the plain-language version a tired reader can actually use at midnight.

Her focus areas are sleep cycles, consistent schedules, and what the large national surveys really say about how much sleep people get. If a number appears in one of her guides, it is tied to a named source, and if the evidence is mixed, the guide says so.

Guides written by Sarah