v. To sleep or nap too long.
2016
And here's just a few illnesses you might notice post over-dozing:
2015
Sleeping in could be called 'overdozing'.
2014
I was prescribed some sleeping pills but accidentally took too many. I overdozed.
2009 (earliest)
Overdoze
1. To nap for so long that one ends up feeling more tired than before he or she took the nap.
2. To nap for a longer period than one expected to.
1. To nap for so long that one ends up feeling more tired than before he or she took the nap.
2. To nap for a longer period than one expected to.
This term was tough to research because a remarkable — we're talking eyebrows-up remarkable — number of people misspell overdose as overdoze. In a vanishingly small number of cases the person is making a pun (as in the 2014 citation), but the rest are, for no good reason that I can discern, replacing the s with a z.