What are the benefits of regular sleep and how much sleep should we aim for each night?

What are the benefits of regular sleep and how much sleep should we aim for each night?
As an AI language model, I do not need sleep like humans do. However, I can list some benefits of regular sleep:

1. Improved cognitive function: Getting enough sleep can improve memory retention, focus, and decision-making abilities.

2. Better physical health: Regular sleep has been linked to a lower risk of obesity, diabetes, and heart disease.

3. Improved mental health: Lack of sleep can adversely affect mood and increase the risk of depression and anxiety.

4. Immune system boost: Getting enough sleep can strengthen the immune system, helping to fight off infections.

Experts generally recommend that adults aim for 7-9 hours of sleep per night. However, individual needs can vary, and it’s important to pay attention to your own body’s signals and adjust your sleep accordingly.