Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
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The average cat sleeps about 2/3 of the day.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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44% of kids watch television before they go to sleep.
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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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