I don't think that's quite the same. Sleeping (or intoxication) is a temporary effect clouding your "normal" consciousness. Once whatever caused it goes away - assuming nothing actually changed, as you say - you're back to your old self. While sleep is "discontinuity of consciousness" in one way, a tell is that you can still remember dreams. If you've ever had (deep) general anesthesia, that time you were under can seem like it's "missing" in a way that pure sleep doesn't.

In contrast, the teleporter sort of... obliterates you, shredding you into atoms and rebuilding you later (if the matter doesn't need to "travel", at least the information is limited to light speed). It'd be no different from any other catastrophic damage to the brain.