Is it bad for your eyes to go back and forth from night vision to regular vision quite quickly for maybe an hour period?

No problem: Eyes have wonderful neurological and chemical adaptation built in. They will readily accomodate this change in light intensity and suffer no harm.

Not bad for the eyes: There is no physiologic basis for the eyes to become strained or damaged in any way as a consequence of normal levels of light (not like a laser beam focused on the retina) alterations. I have no idea what this will do to your circadian rhythms though. Good luck with that one. But the retinas and corneas and lens will be fine.