Sleep deprivation is a major cause of various types of dangerous diseases. Humans use about one third of their lives to sleep. Apart from food, water and air, sleep is also an important element for humans to survive.

The length of time a person sleeps is very influential and becomes an indicator of how healthy his condition is. Unfortunately, there are still many who do not understand the meaning of quality sleep.

Deep sleep all night, and the body feels refreshed when you wake up in the morning indicates that you have got quality sleep. The duration of sleep is not the same for everyone and it can be influenced by age.

Recent studies conducted by experts at the National Sleep Foundation (NSF), the United States shows, children aged 4 months to 17 years should get more hours of sleep than adults. The study also revealed the latest facts about sleep duration that are more appropriate than previous studies.

To find out how long someone actually had to sleep at night, a research team of 18 specialists in the field of sleep health, human anatomy, pediatrics, neurologists, elderly health experts and obstetricians formed a panel. For two years, they observed and analyzed for the right guidance on sleep duration.

Their findings revealed that the previous guidelines were inaccurate. Adults and children need more hours of sleep than has been recommended.

"Some people with certain conditions may need to sleep longer or longer than previously recommended," the NSF report said,