Drug Reverses Effects of Sleep Deprivation. I need this more than ever. With how I've felt lately, I've been getting barely any sleep at all. Last night I slept from 6:30 AM to 7:58 AM and then went to take a Spanish CLEP test. I missed the score I needed by 3 points, which is probably because I've basically become a zombie and they aren't known for their bilingual capabilities, mostly speaking in grunts and moans.