: Why is it recommended to have 8 hours of sleep when sleep cycles happen every 90 minutes, wouldn’t waking up at 8 hours be in the middle of your cycle?

Question

I’ve learnt a little about sleep cycles and remember that every 90 minutes is when we move through the 5 stages of sleep, but I’ve also heard it’s recommended to have 8 hours of sleep. Wouldn’t that make you feel drowsy if you’re interrupting the sleep cycle when you wake up after 8 hours?

In: Other

Answer 1

there is a lot of misleading information in here. if you want to learn more about our current understanding of sleep from a laymans perspective i urge you to watch a few Matthew Walker videos. i like the Joe Rogan one, but there are plenty of others including TED talks. few youtube videos have made me pause and reevaluate my self like his have.