It's better Kylo preserves his strength and keeps watch.

There's no patching up what's wrong with Rokuro. Not unless he has the ability to heal another person from the inside out, and even if Kylo managed to stop the internal bleeding, the soul is what truly keeps a person alive... and a piece of Rokuro's dies every time he pushes himself past mortal capacity.

The moon helps. Or maybe it's the space and quiet. Either way, Rokuro will wake eventually, and with no concept of how long he has been out.

"M-my apologies." Low and hoarse, before rolling onto his side to retch into the dirt.