If you need to use an alarm clock, you're not getting enough sleep: http://www.slate.com/blogs/quora/2013/04/02/how_much_sleep_do_you_need.html?utm_source=tw&utm_medium=sm&utm_campaign=button_toolbar … via @slate
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If you need to use an alarm clock, you're not getting enough sleep: http://www.slate.com/blogs/quora/2013/04/02/how_much_sleep_do_you_need.html?utm_source=tw&utm_medium=sm&utm_campaign=button_toolbar … via @slate