Sleep when you're dead? More like: sleep or you'll be dead sooner

The average person sleeps 5.5 hours. Optimum is around 8. The difference can cut lifespan by something like 10 years. Not a typo. Sleep is the most crucial element for health and how long you live. Think about it: sleep is dangerous from an evolution standpoint. You're immobile, senseless for a third of the time. You don't find food, you don't reproduce, you're vulnerable. If sleep weren't critical, we'd have evolved out of it. The fact it's necessary for all animal life is proof our bodies don't work without it. People who say they'll sleep when they're dead will be dead sooner. On the regulation/stress side I've been looking at the science too. There's a webinar on preparation and integration in breakthrough therapies, expanded states, ADHD, anxiety, burnout. This Wednesday, one hour. Fits the biohacking lens https://event.statezian.uk/events/statesofmind/2098485