Sleep and Dreaming Facts:
You have no sense of smell when you’re sleeping.
You burn more calories while sleeping than you do when watching television.
Sleeping less than 7 hours each night reduces your life expectancy.
The colder the room you sleep in, the better the chances are that you’ll have a bad dream.
Babies start dreaming even before they’re born.
The three things pregnant women dream most of during their first trimester are frogs, worms and potted plants.
Scientists say the higher your I.Q. the more you dream.
You can go without eating for weeks without succumbing, but eleven days is tops for going without sleep.
In a year on an average person sleeps for 122 days out of 365 days.
When we go to sleep and enter REM (Rapid Eye Movement),our bodies become completely paralyzed as areas of the brain that control movement are de-activated.
An average person has over 1,460 dreams a year which is about 4 dreams every night.
The average person falls asleep in seven minutes.
By 60 years of age, 60% of men and 40% of women will snore.
The human body releases growth hormones during sleep.

Source:  https://www.disabled-world.com/medical/human-body-facts.php