Do you feel that 4-5 hours a night is enough sleep for you? Or would you rather sleep more time if you had the chance? By researching for this content, I learned that our body is super good at adjusting to the environment and that we can change our sleeping cycles.
The most important thing is getting enough sleep and quality sleep, something that I would like to research more in depth. Thanks for your comment :)
RE: How to Wake Up When You Want — Controlling your sleep routine