so the object spinning signified awake?
No, it's been a while since I saw it, but from what I remember if the [the object] the top keeps spinning he's not awake, it's still a dream.
At the end you see it beginning to fall (wobble) - that signifies
he is awake.
Although he never comes back to check it, it dosn't matter, in "reality" tops don't right themselves once they begin to wobble, we see it he doesn't.
Point may be he doesn't have to check , reality or dream, he has what he wants. ..the end.
What's real is left open-ended up to the viewer.
Another
spin on it

The totem isn't even his, the top was Mal's, so it's
her dream ending.
His totem might be his ring or something else. - So go rent it again/ buy it, review it and see if you can find his real totem = $
