Tireless: You need to sleep 6 hours in a 72-hour period (instead of a 24-hour period) to gain the benefit of an extended rest.
Is this ability just flavor in that it allows the Mul to go without sleep for 2 days, or does it allow the Mul to gain the benefits of an Extended Rest with less sleep on a daily basis?
In those 72 hours most parties will take 3 extended rests. Can the Mul stand watch for 2 of them and still gain the benefits of an extended rest? Or perhaps 2 hours/day of sleep is sufficient?