So you get to sleep for 2 hours, watch Rose perform psychic maintenance on her body for 2 hours, and than the two of them get to spend the next 4 hours refraining from movement, combat, manifesting powers, skill use, conversation, or any other demanding physical or mental task during the rest period so they can recover expended pp.<br/><br/>At least we are not actually helpless and asleep if something ambushes us during that time.