From the responses, it seems like everyone here is 17 and can use unlimited sleep. In my late 40s, I can't sleep more than 6 hours and if I do, I end up groggy

From the responses, it seems like everyone here is 17 and can use unlimited sleep. In my late 40s, I can't sleep more than 6 hours and if I do, I end up groggy with an aching head. Sleep habits are very diverse and if you're lacking sleep, you'll find out in short order as there's no way to ignore it. OTOH, worrying about whether you are getting enough sleep is creating unnecessary stress in your life.