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When you ingest a stimulant (such as Adderall) & then immediately lie down & go to sleep, such that the Adderall wakes you up in 90 to 120 minutes time and ensures that you do, in fact, only take a nap, rather than sleep for an entire night (or other reasonable span of time).
Yeah, no, I'm not going to sleep tonight—I'm just going to take an addernap & then keep writing this paper.
by Constans May 04, 2014
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