You're absolutely right, one additional point though is that if you're drowsy right now napping is good, but you should also maybe reflect on what's making you

You're absolutely right, one additional point though is that if you're drowsy right now napping is good, but you should also maybe reflect on what's making you drowsy. That carb heavy meal you had? Better scale those down, it's not good for you. The alcohol you had last night that disturbed your sleep (even one beer is enough for that)? Not good for you. Napping is the right thing to do right now, but there might be overarching changes you should do in your behavior to not be drowsy tomorrow.