I thought I understood the sleep deprivation until I became a dad. The part most people don’t account for is the chronic nature of it. It’s not 1 night, or even a few, it’s weeks and months of it. It’s also combined with having your hormones thrown for a loop (yes, men too!). It jams your brain in ways you would never expect.
It’s so easy to screw up that badly that I’m amazed at how infrequent it actually is.