Question 1

What is sleep debt?

Accepted Answer

Sleep debt is the cumulative difference between the sleep you need and the sleep you actually get. For example, getting 6 hours when you need 8 creates 2 hours of sleep debt that night.

Question 2

Can you catch up on lost sleep?

Accepted Answer

You can partially recover from short-term sleep debt by sleeping extra on weekends, but chronic sleep debt cannot be fully repaid with a few good nights. Consistency is key for long-term health.

Question 3

How many hours of sleep do adults need?

Accepted Answer

Most adults need 7–9 hours of sleep per night according to the CDC and National Sleep Foundation. Individual needs vary, but fewer than 6 hours is consistently linked to health problems.

Question 4

What are the effects of sleep deprivation?

Accepted Answer

Sleep deprivation impairs cognitive function, reaction time, and emotional regulation. Chronic deprivation is linked to weight gain, heart disease, diabetes, and increased mortality risk.

Question 5

How do I know if I have sleep debt?

Accepted Answer

Signs of accumulated sleep debt include constant fatigue, difficulty concentrating, relying on caffeine to function, falling asleep immediately, and sleeping significantly more on days off.

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