This is actually a good question.
On one side, you could define waking up as waking up as a dead body, thus being yes.
On the other, you could mean it as waking up and still being alive for it to count, thus being no.
Yes, medical experts define death as "the brain OR circulatory/respiratory functions have irreversibly stopped."
If you wake up unable to breathe, you wake up dead
Physically, no, but from a spiritual, "soul perspective" (still regarding the physical, now-departed remains, since the soul itself is incapable of "death"), yes.
After you die, scientifically speaking, you will likely have no idea that you’re dead. You won’t be able to sense anything or think because you’re dead o algo. But if there is an afterlife.. yeah maybe doebeit.