-- Posted by Anonymous at 7:26 pm on Sep. 20, 2008 i took 20mg of adderall up the nose at 2 today... how long till i should even try to sleep? -- Posted by r o c 1 at 7:26 pm on Sep. 20, 2008 2 days, dont  fuck with that shit -- Posted by ManiacPenguins at 7:26 pm on Sep. 20, 2008 ...What does adderall have to do with sleep? It's supposed to help concentration. -- Posted by Anonymous at 7:27 pm on Sep. 20, 2008 Quote: from ManiacPenguins at 7:26 pm on Sep. 20, 2008 ...What does adderall have to do with sleep? It's supposed to help concentration. its a stimulant. Basically caffeine times a million. -- Posted by r o c 1 at 7:27 pm on Sep. 20, 2008 Quote: from ManiacPenguins at 7:26 pm on Sep. 20, 2008 ...What does adderall have to do with sleep? It's supposed to help concentration. its like crack. have you up all day and night. -- Posted by Sexisocerplaya04 at 7:28 pm on Sep. 20, 2008 Quote: from ManiacPenguins at 9:26 pm on Sep. 20, 2008 ...What does adderall have to do with sleep? It's supposed to help concentration. yeah but in pplz who arnt adhd it makes them up and like someone with adhd cuz it works oppositely -- Posted by glad2bglbt at 7:29 pm on Sep. 20, 2008 hmm...you don't I LOVE ADDERALL!!!! -- Posted by wallopwoop at 9:06 pm on Sep. 20, 2008 Quote: from r o c 1 at 7:26 pm on Sep. 20, 2008 2 days, dont fuck with that shit Bullshit. Shut the fuck up. To answer the original question, I'd try about now. 20mg isn't much and you should be able to sleep by now.