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Instead of sleeping in through the morning, one "sleeps in" (or goes to bed) in the early evening, before 10pm. Thus "reverse" sleeping in. It has the same benefits as a "standard sleep in," but you can still wake up early.
"I'm not going to hang out tonight, I'm really looking forward to a reverse sleep in."
by jweddle August 15, 2008

Words related to reverse sleep in

reverse sleep-in sleep sleep in sleep-in standard sleep in