The following lessons help young scholars from grades 6-8 understand sleep and circadian rhythms. Lesson topics iinclude: day and night, seasons, sundails, clocks, sleep and sleep patterns and sleeping in space.

These materials supplement a video and teaching activities by providing additional background on the science of sleep.

Article reports on the decreasing amounts of sleep being had by teens and tweens and its effects. Includes a list of key vocabulary.

Have you ever wondered about how much sleep you need? Watch a short video, read grade level text, and take an interactive quiz about the science behind sleep.

This test assesses your temporal memory, or how long ago something happened. Try to determine if tiredness affects this type of memory. Following the test, find out some information about memory and sleep. This test takes about 15...

This comprehensive site defines sleep, its stages, and it importance. It also gives tips on how to get all the sleep you need. It also includes a game comparing the average amount of sleep that kids, adults, and different animals get...

Brief article reports on new research into how crocodiles sleep.

Sleep apnea is a common disorder that causes your breathing to stop or get very shallow while you sleep. Discover sleep apnea symptoms and treatment.

Many of us go to bed, sleep, and wake up to a bright new day! However, after reading through the sleep disorders on this website, you will never take another restful night for granted. Authors list some startling statistics pertaining to...

New research on the sleeping behavior of crocodiles. Includes video.

Yo-yo's are a fun toy and there is nothing simpler than a string wrapped between two connected disks. But there's a lot of physics that makes a yo-yo work. In this science fair project, learn more about how and why a yo-yo works. You...

Sometimes staying awake in school can be difficult and if you're a teen you might not be to blame. Find out why a teenager's sleep schedule is unlike any other and the reasons they feel so sleepy at the strangest times. This article also...

A nice overview of the sleep process. There is information on the stages of sleep and the reasons why we sleep. The site also has a few surveys you can take to compare your sleep experience to others.

Teens who don't get enough sleep may suffer from health problems. Learn about the risks of missing sleep and learn how to get the sleep you need.

Get an overview of the process of sleeping. Why do we do it? What are the stages of sleep? How much sleep is required? All of these questions are answered in this article.

Describes the various sleep-related states of consciousness. (Published Jan. 13, 2011)

Read a passage about sleep stages and answer the follow-up questions.

Shai Marcu shows how sleep restructures your brain in a way that's crucial for how our memory works. [5:44]

This five-question quiz is based on the passage "Effects of Sleep Deprivation on Memory."

Full text of Aristotle's "On Sleep and Sleeplessness"; translated by J. I. Beare. One of the works known collectively as "Parva Naturalia."

This helpful Stanford University site provides tips to getting a better night's sleep.

Students practice a procedural skill -- knot tying -- to investigate if and in what way sleep affects learning and memory in relation to a learning a procedural skill. Sleeping is a behavior that is natural and essential for our health...

Can't sleep? Don't want to sleep? Afraid of missing something if sleep takes over? Dr. Universe talks with a friend from WSU's Sleep and Performance Research Center about the importance of sleep.

Curious about your dreams? Use this site to learn about sleeping and dreaming. Become a brainiac as you learn more about your dreams and have some fun at the same time.