Your Mac goes to sleep after a few idle minutes, which is a good thing, but sometimes that's not what you want. To prevent your Mac from sleeping unexpectedly, you can use the Terminal command "caffeinate" to keep it awake. This method is effective, instant, and easy to stop, making it a great temporary solution for preventing sleep on a Mac that's not yours. The command can be as simple as typing "caf" and hitting tab, which allows you to quickly complete the word without having to remember how to spell it. Using this trick makes you look cooler than you are, but more importantly, it helps you avoid interruptions during important work sessions or presentations.