Fact or Myth?

I think it's true although I don't know the science behind it when I or my kids are in the mode to sleep and we miss the window you kinda go into autopilot and it's harder to sleep.

Yes. I hate when it happens.

I can sleep pretty much anywhere and anytime so long as I'm halfway comfortable, but if I'm beyond exhaustion I think adrenaline kicks in and I cant sleep for squat.

That makes sense!

I have found some evidence, according to Google.
https://www.google.com/search?q=can+you+be+too+tired+to+sleep&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

Just copy that in the search bar.

Myth