B Betsy Guest Jan 25, 2009 #1 Do we need no light to be able to sleep? Why can't we sleep with our eyes unfocused? Why do our eyelids close when we sleep?
Do we need no light to be able to sleep? Why can't we sleep with our eyes unfocused? Why do our eyelids close when we sleep?
B bry.nh Guest Jan 25, 2009 #2 So our eyes don't get dried out. Although there are some people who can/do sleep with their eyes open, such as: a lot of babies will do this, and some burn victims - if they lost their eye lids, have no choice, etc...
So our eyes don't get dried out. Although there are some people who can/do sleep with their eyes open, such as: a lot of babies will do this, and some burn victims - if they lost their eye lids, have no choice, etc...
C cocazero09 Guest Jan 25, 2009 #3 Think about it. The average person sleeps 8-9 hours a day. Can you keep your eyes open, with out blinking for that amount of time? They would dry up. And as for the light, i think it helps us relax. It eliminates all object and helps us be calm. =)
Think about it. The average person sleeps 8-9 hours a day. Can you keep your eyes open, with out blinking for that amount of time? They would dry up. And as for the light, i think it helps us relax. It eliminates all object and helps us be calm. =)
