What is "over-excitement"

Usage examples of "over-excitement".

Besides which, notwithstanding the over-excitement of the evening, sleep, the assiduous host of pure consciences and tired limbs, had descended with all its poppies to welcome the virtuous and heartily tired Pitou.

But remember, both of you, that the workings of cresh are insidious, and over-excitement is as fast a route as any into dreamness!