That differs from how old you are. Most adults need seven to nine hours a night; others manage just fine with six. Children need approximentally 9-11 hours of sleep depending on how old you are.
Well the answeris 10-12 hours each day because you need to have fun at night but still get sleep.
Around 8 hours a day.
9 hours a child should have a day plus the next day
Elephants and short-tailed shrews get only 2 hours of sleep each day.
they sleep aprox 18 hours a day
So in the day they don't get tired and so there brain works better in the day.You should at least 8 hours of sleep each night
20%
A giraffe sleeps anywhere from a half-hour to one hour each day.
koalas sleep upto 20 hours a day
40 and 50 grams each day
about 8 glasses a day.
8 glasses a day