Thank you for playing and enjoying the game! We appreciate your feedback.
Regarding the sleep mechanism, it's supposed to be tied to completing tasks like selling furniture, working, and giving gifts before being able to sleep. We'll consider adding a tutorial mode to make these mechanics clearer. However, if the inability to sleep occurs despite completing these tasks, it might be a bug. We'll thoroughly test it multiple times to address any issues.
Thanks again for your support and valuable insights!