Correct answer
Usually 7 to 9 hours, depending on individual needs.
Usually 7 to 9 hours, although individual needs and age can vary. Sleep quality and continuity also matter: reaching that number does not guarantee fitness to drive. Do not drive when drowsy, and consult a healthcare professional if it persists despite rest. Coffee, other stimulants or a brief break do not replace the sleep you need.
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Always 10 to 12 hours for every adult.
3 to 4 hours are usually sufficient for every adult.
Usually 7 to 9 hours, depending on individual needs.
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