Overnight Bus From Zihua To Puerto Vallarta

First time visitors to Zihua. Flying in to Zihua, and staying for two weeks before departing for Puerto Vallarta. Heard that there is a first class overnight bus to PVR. Just wondering if this would be a safe time to make the trip. Anyone having any info about which bus company would be the best to use? Any info regarding making this trip would be greatly appreciated. Thank you.

Don't like to travel at night. First class bus or anything else. Your mileage may vary.

D