How many hours of sleep a night do I need?
Mayo Clinic Minute: How much sleep do kids need?
How much sleep do kids really need?
How many hours of sleep do you need?
Sleep Time & Age
How Many Hours of Sleep Do Children Need?
Science Explains How Much Sleep You Need Depending on Your Age
How much sleep do you really need? | Sleeping with Science, a TED series
Why 4 Hours Of Sleep Is Terrible For You — Even If You Don't Feel Tired
Kids and Sleep: Setting a Sleep Schedule
How Can I Get My Children to Go to Sleep Earlier? | This Morning
Not enough sleep may harm children’s developing brains
I Can't Sleep for More Than 4 Hours a Night - Why? | This Morning
Yoga Guru - Hansaji | How many hours should you sleep?
How old is too old for your child to sleep in bed with you? Expert advice for parents
Study helps explain sleep problems in the elderly
How less sleep impacts a child's brain
What Happens If You ONLY SLEEP 4 Hours A Night for 30 Days?
What Happens to Your Body on Little Sleep?