Our internal clock is what dictates our sleep-wake cycle.    From Wordnik.com.  [Dr. Michael J. Breus: Attention Parents: Sleep Problems May Trigger Manic Depression in Kids] Reference

He had fallen ill with the trailing rot a sleep-wake ago.    From Wordnik.com.  [Starship]

As you heard mentioned there, you can have sleep-wake cycles.    From Wordnik.com.  [CNN Transcript Mar 18, 2005] Reference

One sleep-wake in four, in all the known territories, was dark.    From Wordnik.com.  [Starship]

And people don't necessarily go with the regular sleep-wake cycles.    From Wordnik.com.  [CNN Transcript Dec 29, 2006] Reference

She seems to have just a, you know, the sleep-wake cycle, as you said.    From Wordnik.com.  [CNN Transcript Mar 23, 2005] Reference

We do know, however, that melatonin isn't just about sleep-wake cycles.    From Wordnik.com.  [Dr. Michael J. Breus: Melatonin: Miracle or Mistake?] Reference

"He will be making the Long Journey before another sleep-wake is spent.".    From Wordnik.com.  [Starship]

For instance, you accepted the fact that one sleep-wake in four was dark.    From Wordnik.com.  [Starship]

By that time, it was growing late: a dark sleep-wake was almost upon them.    From Wordnik.com.  [Starship]

Each one of us maintains a circadian rhythm that dictates our sleep-wake cycles.    From Wordnik.com.  [Dr. Michael J. Breus: Regular Daily Routines Enhance Sleep Experience] Reference

Bill and I often joke about how we're on completely different sleep-wake cycles.    From Wordnik.com.  [Generations: The History of America's Future, 1584-2069] Reference

BLUDAU: It helps improve the sleep-wake cycle, making them sleep better at night.    From Wordnik.com.  [CNN Transcript Dec 27, 2001] Reference

Our circadian rhythms, which control our sleep-wake cycle among other daily cycles.    From Wordnik.com.  [Deepak Chopra: Weekly Health Tip: The Winter Blues] Reference

If you vary those times more than 90 minutes, you can mess up your sleep-wake cycle.    From Wordnik.com.  [The Quest for Rest] Reference

You can also consider melatonin, a hormone that helps regulate the sleep-wake cycle.    From Wordnik.com.  [How to be healthy at 30,000 feet] Reference

He would have to hurry to be back before the next dark sleep-wake descended upon them.    From Wordnik.com.  [Starship]

Her body's clock is out of sync with the sleep-wake rhythm most of the world lives by.    From Wordnik.com.  [The Speculist: April 2005 Archives] Reference

You can set your body's natural sleep-wake cycle by creating a familiar bedtime routine.    From Wordnik.com.  [Janice Taylor: 15 Tips for Better Sleep] Reference

The facility is set up to control those factors that typically influence sleep-wake behavior.    From Wordnik.com.  [CNN Transcript May 21, 2006] Reference

Irregular circadian rhythms: ICU patients don't usually keep their normal sleep-wake patterns.    From Wordnik.com.  [Dr. Michael J. Breus: The Sounds and Sleeplessness in the ICU--Part I] Reference

As they were finishing, the dark came on, the natural dark which arrived one sleep-wake in four.    From Wordnik.com.  [Starship]

Melatonin regulates circadian rhythm, i.e. sleep-wake cycle, and is produced at night and while sleeping.    From Wordnik.com.  [SADness: Seasonal Affective Disorder & Vitamin D] Reference

Your sleep-wake cycle follows a regular pattern (circadian rhythm) and when you sleep "too much" that pattern shifts.    From Wordnik.com.  [Dr. Michael J. Breus: How Come I Feel More Tired When I Sleep Longer?] Reference

If you don't believe me, go here and download info, including an informative PDF about the sleep-wake cycle in particular.    From Wordnik.com.  [Dr. Michael J. Breus: The #1 Way to Beat the Afternoon Slump] Reference

You become depressed, your sleep-wake cycle gets all goofed up, you become cranky and irritable and you get more headaches.    From Wordnik.com.  [SADness: Seasonal Affective Disorder & Vitamin D] Reference

Cherries contain melatonin, a natural antioxidant with a well-documented history of helping to regulate the sleep-wake cycle.    From Wordnik.com.  [Dr. Michael J. Breus: Can Cherries Relieve Insomnia?] Reference

Tell yourself you won't party past a certain time; keep to a regular sleep-wake schedule as best you can, even on the weekend.    From Wordnik.com.  [Dr. Michael J. Breus: Off to College, Probably Not Off to Sleep: Part 1] Reference

Some animal studies indicate that these two hormones could also play a role in setting circadian rhythms (the sleep-wake cycle).    From Wordnik.com.  [Sleep] Reference

Try sleep-wake or power-cycle (sleep-wake works the best for me) and repeat your test.    From Wordnik.com.  [Discussions: Message List - root] Reference

A person in a coma does not take voluntary actions and does not have sleep-wake cycles.    From Wordnik.com.  [Medlogs - Recent stories] Reference

Their model will also provide clues to the most basic dynamics of the sleep-wake cycle.    From Wordnik.com.  [Newswise: Latest News] Reference

Circadian clocks guide the metabolic, cell-division, sleep-wake, circadian and seasonal cycles.    From Wordnik.com.  [ScienceBlogs Channel : Life Science] Reference

"We wanted to create a very interdisciplinary tool to understand the sleep-wake cycle," Holmes said.    From Wordnik.com.  [Newswise: Latest News] Reference

This research foundation allowed the team to develop a massive 11-equation model of the sleep-wake cycle.    From Wordnik.com.  [Newswise: Latest News] Reference

"The sleep-wake cycle is not as rigid as we might think - we have the capability to sleep in different ways.".    From Wordnik.com.  [BBC - Ouch] Reference

She investigated the role of specific neurotransmitters within the brain at various points in the sleep-wake cycle.    From Wordnik.com.  [Newswise: Latest News] Reference

"We have developed a model that can serve other researchers as a benchmark of the ideal, healthy sleep-wake cycle," Holmes said.    From Wordnik.com.  [Newswise: Latest News] Reference