I'm cool with them staying up til they die, even give them a 1%/minute passive regen.

Another thing that would be nice is auto-reraise. Especially when the dragon is defeated/vanishes. You don't get the silt/bead reward til you raise, but if you don't have reraise, you're out of luck because everyone else has lost the buff and can take no action to raise you.

There was one instance where I charged towards the dragon (Quetz I think), got slept, stood there for 30 seconds, hit with a powerful aoe, red hp, slept immediately and stood there til I died from the next aoe.