Top Definition
When one's actions point to marijuana use but are actually a result of being tired.
Dave: Why is Doug squeezing my acne cream onto his toothbrush?

Tom: Don't mind him, he's sleep stoned.
by B.E. July 21, 2009
When you have hardly had any sleep and you feel weird and say a bunch bizarre things and laugh about stupid shit. You seem high, but really you're only sleep deprived.
person 1: morgan's acting really weird!! is she high or something!
person 2: no man, she was up late studying for a test, she's just sleepstoned
by chrompxl October 11, 2014
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