In the stages of non-REM sleep, there are no dreams, and brain activity decreases while the body recovers from wakeful activity. The amount and periodicity of sleep in humans vary ...
http://dictionary.reference.com/search?q=sleep

Think about it: our troops are facing everything that makes sleep hard. There is extreme jet lag, new environments, stress, night shifts and more.
http://sleepdisorders.about.com/

Eye movements and muscle activity change throughout the various stages of sleep too. There are several known characteristics of sleep... we all look the same when sleeping... when ...
http://www.sleep-good.com/

The EEG pattern changes in a predictable way several times during a single period of sleep. There are two basic forms of sleep: rapid eye movement (REM) sleep and non-rapid REM ...
http://faculty.washington.edu/chudler/sleep.html

SLEEPLESS AT STANFORD. What All Undergraduates Should Know About How Their Sleeping Lives Affect Their Waking Lives. William . Dement, M.D., Ph.D.
http://www.stanford.edu/~dement/sleepless.html

When people sleep, there?s a lot more going on than meets the eye. The notion of sleep as the body?s ultimate ?down time? has some truth to it, but sleep is also an active ...
http://health.yahoo.com/sleep-overview/sleep-what-s-going-on-behind-that-shut-eye/harvard--COL061005.html

In NREM sleep, there is relatively little dreaming. Non-REM encompasses four stages; stages 1 and 2 are considered 'light sleep', and 3 and 4 'deep sleep' or slow-wave sleep, SWS.
http://en.wikipedia.org/wiki/Sleep

... the hanky), and a few who stated that years ago, when they were young children, they spat out or brushed from their mouths an object they interpreted (while still groggy with sleep ...
http://www.washington.edu/burkemuseum/spidermyth/myths/whileyousleep.html

Our mission is to enhance the quality of life for each of our customers, through products and services that significantly improve the quality of their sleep!
http://www.sleepamerica.com/

If you are waking up all night long, you aren't getting enough rest from your sleep. There are 2 kinds of sleep apnea: obstructive apnea and central apnea.
http://familydoctor.org/online/famdocen/home/articles/212.html

How can you get your kids to sleep in their own beds? This is a common concern for many single parents whose children seek the warmth and comfort of sharing a bed at night.
http://singleparents.about.com/od/parenting/f/their_own_beds.htm

As parents, we want our children to sleep well for their own health ? as well as ours! But growing up involves a lot of physical and psychological change, and this can affect a ...
http://www.drgreene.com/54_23.html

After a long day at work, there is nothing like a good night's sleep! Just like on Earth, a worker in space goes to bed at night then wakes up the ...
http://spaceflight.nasa.gov/living/spacesleep/index.html

When people sleep, there?s a lot more going on than meets the eye. Full Article » Provided by: Harvard Health Publications More Overview Information
http://health.yahoo.com/sleep/

The Sleep Apnoea Trust Association (SATA) exists to improve the lives of sleep apnoea patients, their partners and their families. Managed entirely by volunteers, SATA is the ...
http://www.sleep-apnoea-trust.org/

Re: Are there animals who don't sleep or that sleep very little? Date: Tue Aug 1 16:27:06 2000 Posted By: Juliette Faraco, Post-doc/Fellow, Psychiatry/Genetics, Stanford Center ...
http://www.madsci.org/posts/archives/2000-08/965504574.Zo.r.html

Not enough sleep can endanger their immune system and make them more suceptible to serious illnesses. Judgement can be impaired. We don't know how many car crashes involving teen ...
http://www.stanford.edu/~dement/adolescent.html

The reverse of this is when we don't get enough sleep, there is a slight excess of serotonin in the brain, resulting in the "buzz" you mentioned.
http://serendip.brynmawr.edu/exchange/node/1690

Sleep Number beds by Select Comfort - unique air chamber design allows each sleeper to adjust the mattress to the firmness or softness they prefer. Pillows, sheets, & other quality ...
http://www.selectcomfort.com/

Here's how you and your kids can set up a healthy sleep schedule. ... By Karen Barrow Sleeping until noon and general grumpiness may be a stereotype of teenagers, but since mood ...
http://www.webmd.com/sleep-disorders/features/teens-need-their-zzzs