Recent Blog Articles

Staying Healthy

How do I improve the quality of my sleep?

December 01, 2020

Ask the doctor

38204c4b-29ee-4b25-8514-f27f7a95d3a1Q. How many hours of sleep do I need each night, and how do I improve the quality of my sleep?

A. Adults need to average between seven and nine hours of sleep per night. If you're over 65, eight hours might be enough. The occasional short night of sleep won't hurt you.

To continue reading this article, you must log in.

Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.

  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »

I'd like to receive access to Harvard Health Online for only $4.99 a month.

Sign Me Up

Already a member? Login ».


As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.