My ex-husband lives in Alabama. Every year we have a big blowout over visitation. He wants to drive from Alabama to West Texas, pick up our son, turn around and drive back, with no stops for sleep. (It's about a 20-hour trip each way.) My son just called me and said that his dad got really tired on the drive, so they pulled over to sleep for a few hours. For now, all is well and my son's safe, but is there anything I can do about this? I'm losing sleep myself.