My Ball comes out many nights. My GTP, ETB, and BRB cruise almost every night except after feeding or during a shed. My Col and Dwarf Boa also come out often at night, they will actually cruise during the day some as well.
I'm with Ziggy and think probably nothing is wrong.
If my snakes are eating and shedding well I let them do as they please and stopped trying to figure them out long ago. I swear snakes do things just to make their owner worry.