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A typical 70-year-old should aim for about 7 to 8 hours of nightly sleep, adjusting slightly based on health, daytime energy, and routine.

A typical 2-year-old needs 11 to 14 hours of total sleep in 24 hours, usually split between night sleep and one daytime nap.

A 66-year-old woman usually needs around 7 to 8 hours of sleep per night, with some feeling best closer to 9 hours depending on health and daily habits.

Most 65-year-olds do best with 7 to 8 hours of nightly sleep, plus steady bedtimes and clear daytime energy.

Most 10-year-old girls do best with 9 to 11 hours of nightly sleep, within the 9 to 12 hour range recommended for school-age children.

A 63-year-old woman usually does best with 7–9 hours of sleep each night, tuned to her health, medications, and how rested she feels in the daytime.

Most 62-year-old women do well with about 7 to 8 hours of sleep each night, within an overall range of 7 to 9 hours.

Most 60-year-olds do best with about 7–8 hours of sleep each night, adjusted to how they feel and function during the day.

Most 60-year-old men do best with 7–8 hours of sleep a night, adjusted for health, activity level, and how rested they feel during the day.

A 50-year-old woman typically needs about 7 to 8 hours of nightly sleep for steady energy, mood, and long-term health.