Why Do Dogs Sleep with Their Eyes Open?

Ever caught your dog sleeping with an eye open?

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It's a weird behavior most dog owners have seen before.

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But are they really asleep?

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Turns out there are a few explanations for dogs sleeping with their eyes open.

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One is the existence of a third eyelid in dogs.

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This can give the illusion that a dog is sleeping with an eye open.

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Dogs also frequently sleep in a semi-alert state.

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This instinctual behavior has been retained in the domestication from wolf to dog.

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Swipe up to learn more about your dogs sleeping habits!

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