[ELI5] What does the actual moment of falling asleep feel like and why can we never notice/remember it?

Question

[ELI5] What does the actual moment of falling asleep feel like and why can we never notice/remember it?

In: Biology

Answer 1

Think of falling asleep like a slow wind-down, not a switch that flips on/off. You’re winding down, so when you reach, like, 20 percent awake, you stop forming long-term memories that will “survive” the night of sleep.