> I see no reason to think it has significant impact on emotional enjoyment though as you're suggesting - these studies impact learning primarily which wouldn't seem to be deeply involved there.
Please, sleep is essential for emotional stability. I know you rely a lot on self-study, many of us on HN do, but schedule half an hour to talk with your doctor or with a psychologist, psychiatrist or sleep-specialist, and let them convince you rather than letting me do it.
Sleep is absurdly important in all aspects of life, memory integration, resting, repairing the body, emotional regulation.
Not to mention, you are way, way less prone to diseases like cancer, alzheimers, fatigue, depression...
And there are other aspects of sleeping that are interesting and enjoyable too, time slept is not time lost, you dream while sleeping, you know? If you really want to optimize time lived, then you should go for 8 hours of sleep and learn about lucid dreaming, for instance.
> In fact, studies exist showing positive impacts for depression patients.
Not sleeping does indeed have a positive impact patients with depression (and anxiety). I can tell you this because I am one of those people. Out of personal experience, yes absolutely, poor sleep for one day makes you feel better. Why? Because you're so incredibly fucking tired that you literally can't even bother to be anxious.
It is horrifying.
Please for gods sake have some respect for yourself and for your body.