That's what I think it is. There's no evidence that there's anything else.My hope is that it'll be like a candle going out. Poof! It's gone. No heaven, no hell....it's just over.
When people ask or speculate on what happens after death, my answer is: What was it like for you before you were born? (Or maybe I should say conceived, as there may be some primitive consciousness in the womb).