Different type of sleep habits

Type A person as long as there is A little bit of trouble will soon wake up, so often can't sleep;

Type O people as long as sleep time arrived, they often can sleep.

Type B people as long as to sleep, and they will shout to sleep, and no matter where, can sleep very safe.

Type AB people lack of sleep, in the middle of the night and wake up is not easy to fall asleep easily, so they are often on the bus, dozing in class.

Different type of sleep habits related content

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