Star Sleeper National Heart, Lung, and Blood Institute
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Guess How Much Sleep These Animals Need
Choose one of the following animals for each blank below:

dogs giraffes brown bats
pythons cats horses
human children African elephants tigers
cows    

If you don't know, don't worry. Just make a guess!

1) ____________ sleep 12 or more hours every 24 hours. They sleep mostly at night, but also during the day.

2) ____________ may be big, but they sleep only 3 hours every 24 hours.

3) Lucky for us humans, slimy ____________ sleep 15 to 20 hours and ____________ sleep 16 hours every 24 hours.

4) ____________ and ____________ sleep only 4 hours every 24 hours because they need more time to eat.

5) ____________ need at least 9 hours of sleep every 24 hours!

6) When they aren't eating insects, ____________ sleep nearly 20 out of 24 hours every day.

7) ____________ don't need pillows, because they sleep less than 2 hours each day standing up!

8) Some types of ____________ sleep more than others, usually 10 hours every 24 hours.