You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
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Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
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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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"Dysania" is the state of finding it hard getting up out of bed in the morning.
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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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Bats sleep 18-20 hours per 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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