system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: On the scale of human to microbe at which point along the scale does sleep stop being an important life component for organisms?

Im guessing there is a general line on that scale in which sleep happens to most everything to the right of the line and does not happen with most everything to the left of the line but I have no idea where that line is.
gpt
There’s not really a hard line there, or a great definition of what “sleep” means to a jellyfish.

A lot of cruder organisms do change or shut off certain metabolic/behavioral pathways on a daily cycle, either to conserve energy during sub-optimal light/temperature conditions or simply to be inactive when predators are active.

You’ll see changes in activity even down to the single celled level.  It’s not exactly sleep, but these organisms do need this dormant period to handle certain metabolic activities that they’re not doing as much while active.