Featured Research

from universities, journals, and other organizations

Decreased Total Sleep Time Associated With Increased REM Sleep During Subsequent Naps

Date:
June 10, 2008
Source:
American Academy of Sleep Medicine
Summary:
Decreased nightly total sleep time, even within the normal range, is associated with an increased percentage of REM sleep during subsequent naps.

Decreased nightly total sleep time, even within the normal range, is associated with an increased percentage of REM sleep during subsequent naps, according to a research abstract that will be presented on June 10 at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).

The study, authored by Jennifer Kanady, of the University of California at San Diego, focused on 24 healthy subjects, who wore an actigraph for seven nights while adhering to a regular sleep-wake schedule followed by a 90-minute, polysomnographically-recorded nap. The influence of two-night and seven-night averages of total sleep time immediately prior to the nap on nap architecture was examined.

According to the results, less prior nightly total sleep time increased the percentage of REM sleep during the nap. Average total sleep time did not affect any other architecture variable of the nap. Bed and wake time appear to influence REM sleep percentage only in the short-term.

"The findings of our study indicate that minute differences in 'normal' sleep duration influence the percentage of REM sleep obtained in a subsequent afternoon nap," said Kanady. "Specifically, 10 minutes less sleep per night led to a 1.3 percent increase in nap REM percentage. These results may have important implications for studies examining sleep-dependent memory consolidation, particularly those studies that highlight the importance of REM sleep."

It is recommended that adults get between seven and eight hours of nightly sleep.


Story Source:

The above story is based on materials provided by American Academy of Sleep Medicine. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Sleep Medicine. "Decreased Total Sleep Time Associated With Increased REM Sleep During Subsequent Naps." ScienceDaily. ScienceDaily, 10 June 2008. <www.sciencedaily.com/releases/2008/06/080610071936.htm>.
American Academy of Sleep Medicine. (2008, June 10). Decreased Total Sleep Time Associated With Increased REM Sleep During Subsequent Naps. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2008/06/080610071936.htm
American Academy of Sleep Medicine. "Decreased Total Sleep Time Associated With Increased REM Sleep During Subsequent Naps." ScienceDaily. www.sciencedaily.com/releases/2008/06/080610071936.htm (accessed April 18, 2014).

Share This



More Health & Medicine News

Friday, April 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
Powered by NewsLook.com
Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com
Is Apathy A Sign Of A Shrinking Brain?

Is Apathy A Sign Of A Shrinking Brain?

Newsy (Apr. 17, 2014) A recent study links apathetic feelings to a smaller brain. Researchers say the results indicate a need for apathy screening for at-risk seniors. Video provided by Newsy
Powered by NewsLook.com
Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins