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25-11-2017
Biology

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Each stage of the sleep cycle lasts about how long? an hour 30 minutes 15 minutes 90 minutes

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VivaciousLyla VivaciousLyla

25-11-2017

Hey You!

There are 5 stages of the sleep cycle, and each stage lasts about 5-15 minutes long (usually around 10-15, though).

And that's youd answer! ^

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