How many hours of sleep do you need?

I wish I had enough time to sleep.

My usual sleeping time is from seven to nine hours.

It grew strength from the young people who rejected the myth of their generation's apathy … who left their homes and their families for jobs that offered little pay and less sleep.

It drew strength from the young people who rejected the myth of their generation's apathy, who left their homes and their families for jobs that offered little pay and less sleep.

Once I started college, I barely had time to sleep.

Is it true that short people need more sleep than tall people?

I sleep six hours a day on average.