How much do animals sleep??

Most animals have a daily pattern of rest and activity. Some animals are more active during the day (daytime) and some are more active at night (night). How much do animals sleep??, good, depends on the animal:

 SpeciesDream (% of the 24 hours)Dream (hours / day)
giraffeGiraffe

7.9%

01.54 hours

Horse
Horse

12.0%

02.54 hours

Donkey
Donkey

13.0%

03.06 hours

elephants
Elephant

13.8%

03.18 hours

Sheep
Sheep

16.0%

03.48 hours

Cow
Cow

16.4%

03.54 hours

Asian elephant
Asian elephant

16.4%

03.54 hours

Goat
Goat

22.1%

05.18 hours

old man asleep
Human (old man)

22.9%

05.30 hours

Grey seal
Grey seal

25.8%

06.12 hours

fish-guppy
Guppy fish

29.1

07 hours

Pork
Pork

32.6%

07.48 hours

sleeping
human adults

33.3%

08 hours

Guinea de Indias
Guinea de Indias

39.2%

09.24 hours

Chimp
Chimpanzee

40.4%

09.42 hours

Squirrel monkey
Squirrel monkey

41.3%

09.54 hours

European Hedgehog
European Hedgehog

42.2%

10.06 hours

Mole with star-shaped nose
Star nosed Mole

42.9%

10.18 hours

Baboon
Star nosed Mole

42.9%

10.18 hours

Bottle-nosed dolphin
Dolphin bottle snout

43.3%

10.24 hours

DOG
Dog

44.3%

10.38 hours

Jaguar
Jaguar

45.0%

10.48 hours

Duck
Duck

45.0%

10.48 hours

Conejo
Conejo

47.5%

11.24 hours

Rhesus monkeyRhesus monkey

49.2%

11.48 hours

mouse
Mouse

50.3%

12.06 hour

gatoblanco
Cat

50.6%

12.06 hours

Cheetah
Guepardo cheetah

50.6%

12.06 hours

rat
Rat

52.4%

12.36 hours

gerbil
Gerbil

54.4%

13.06 hours

Leon Dormido
Leon

56.3%

13.30 hours

Platypus
ornitorinco

58.3%

14.0 hours

Golden Hamster
Golden Hamster

59.6%

14.18 hours

Three-toed slothThree-toed sloth

60.0%

14.24 hours

Huron
Huron

60.4%

14.30 hours

sapo1
Western Toad

60.8%

14.36 hours

Squirrel
Chipmunk

62.0%

14.54 hours

Tiger sleeps
Tiger

65.8%

15.48 hours

Shrew arboricola
Shrew arboricola

65.8%

15.48 hours

bebedurm
Human (baby)

66.7%

16 hours

OWL monkey
Buho mono

70.8%

17.0 hours

The North American opossum
The North American opossum

75.0%

18 hours

Piton
Python

75.0%

18 hours

Armadillo
Giant Armadillo

75.4%

18.06 hours

BatBat

82.9%

19.54 hours


Table How animals sleep? It was adapted from four sources:

1 – Aserinsky, (E)., the status of lids at birth: the relationship with adult mammalian circadian patterns, in REM sleep , edited by BN Mallick and S. Inoue, Narosa Publishing, New Delhi, 1999, p. 7.
2 – Campbell, the SS and Tobler, (I)., the dream of the animals:. A review of the duration of sleep through the phylogeny of neuroscience and Bioconductual Rev. , 8:269-300, 1984.
3 – Kryger, MH, Roth, T. and Dement'yevskoye, WC, Principles and practice of sleep medicine , WB Saunders Co., Philadelphia, 1989, pp 39-41.
4 – Tobler, (I)., siesta and transients in mammals, dream and monitoring: Cronobiológico aspects, Behavior and medicine of the siesta , edited by DF Dinges and Broughton RJ, Raven Press, New York City, 1989, pp 9-31.

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2 thoughts on"How much do animals sleep??”

  1. Thanks Jane.

    By sight the easiest thing to identfy them is their tail. Squirrels have a bushy tail that they curl up behind them, while chipmunks have a thinner, straighter tail. Squirrels are also bigger than chipmunks, and can be either red or gray, chipmunks are usually red.

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