A–Z Glossary

morning light exposure

Light exposure is the use of natural or bright light to help shift the body clock toward the desired sleep schedule.

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Returning to a school sleep schedule after vacation

Returning to a school sleep schedule after vacation

Why vacation sleep drifts and why that matters On vacation, children often stay up later, sleep in, or nap at unusual times. That is not a moral failure or a parenting mistake; it is simply what happens when school schedules, early alarms, and homework pressure temporarily disappear. The result can be a delayed circadian rhythm, […]

Travel sleep tips for children crossing time zones

Travel sleep tips for children crossing time zones

Why children get jet lag Jet lag happens when the body’s internal timing system is out of sync with the local day-night cycle. The circadian rhythm in children, like in adults, is organized by the brain’s timekeeping network and influenced by light, meals, activity, and sleep timing. When a child crosses several time zones, those […]