Sleep Sounds - Calming melodie 1.65

Simplicity Provides ❘ Freeware ❘
Android
out of 609 votes

This is not a download form!

The UpdateStar program database is maintained by the users, for the users.
With your support, you can help all other users keep their software setup up-to-date. Fill out any fields that are incorrect or not up to date. We will check and evaluate your contribution as soon as possible.
Thank you for supporting UpdateStar!

Title:

Category:

Requirements:

Android

iOS

Windows

Mac

Linux

License:

Publisher:

Publisher URL:

Description:

Sleep
The timing and progression of the sleep cycle and the total amount of nightly sleep required for optimal health varies from infancy to adulthood, depending on developmental stage and temperament. Children, particularly infants, require the most sleep during a 24-hour period. The natural sleep-wake cycle, governed by an internal "biological clock," tends toward a 25-hour day. It is affected by the relative balance of light and darkness in the environment. As darkness approaches, the hormone melatonin is secreted by the pineal gland and signals the brain that it is time to sleep.

NREM deep sleep
Sleep begins in stage one of the sleep phase known as NREM, or non-rapid eye movement, sleep. NREM sleep has four stages: light sleep, deeper sleep, and two stages of deepest sleep. Stage one is the "drifting off" period of light sleep in the transition between wakefulness and sleep and comprises about 5 percent of the entire sleep period. Stage two sleep involves a change in brain-wave patterns and increased resistance to arousal and accounts for 45–55 percent of total sleep time. Stages three and four are the deepest levels of sleep and occur only in the first third of the sleep period. NREM stage four sleep usually takes up 12 to 15 percent of total sleep time. Sleep terrors, sleepwalking, and bedwetting episodes generally occur within stage four sleep or during partial arousals from this sleep stage.

It typically takes about 90 minutes to cycle through the four deepening stages of NREM sleep before onset of the second phase of sleep known as REM or dream sleep.

REM dream sleep
Rapid eye movement (REM) sleep is qualitatively different from NREM sleep. REM sleep is characterized by extensive central nervous system (CNS) activity with an increase in brain metabolism accompanied by the vivid imagery of dreams. During REM sleep, the body is nearly paralyzed, a condition called "atonic," that serves to inhibit the dreamer from physical movement during active dreaming.

"Waking and dreaming are two states of consciousness, with differences that depend on chemistry," according to J. Allan Hobson, professor of psychiatry at Harvard Medical School. Physical activity and thought are suppressed in sleep, but the brain nonetheless remains active "processing information, consolidating and revising memory, and learning newly acquired skills." The brain self-activates, radically changing its chemical climate from wakefulness to sleep states.

REM sleep is also known as "paradoxical sleep" because muscle activity is suppressed even as the CNS registers intense brain activity and spontaneous rapid eye movements can be observed. Brain-wave monitoring of REM sleep with an electroencephalograph (EEG) reveals a low-voltage, fast-frequency, non-alpha wave record. Beyond infancy, REM sleep comprises 20–25 percent of the entire sleep period. This sleep phase is concerned with memory and the consolidation of new information.

Infancy
Newborn infants usually sleep for brief periods at a time around the clock, with the total of day and nighttime sleep roughly equal. A newborn's total sleep need is from 16 to 18 hours in every 24-hour period. Newborns spend approximately 50 percent of their sleep period in the REM phase. Infants are most easily awakened during this phase of sleep that is accompanied by yawning, squirming, and quiet vocalizations.

Infants move through REM and non-REM sleep stages in a 90-minute cycle, and they rise to a near-waking state every three to four hours, more often in breastfed infants. By about six months of age, babies usually will sleep through the night for 12 or more hours and will continue to nap several times throughout the day.

Tags:

Short description:

Installed version unknown?

Current version:

Download URL:

Direct Download URL:

Buy URL:

Icon URL:

Screenshot 1 URL:

Screenshot 2 URL:

Screenshot 3 URL:

Screenshot 4 URL:

PAD file URL:

Comment:

Your email:

Newsletter:

Please enter your email address if we may contact you should we have questions regarding your contribution. We will never share your e-mail address with any third party.

Screenshots (Click to view larger)

Secure and free downloads checked by UpdateStar

Stay up-to-date
with UpdateStar freeware.

Latest Reviews

	Intel(R) Dynamic Tuning Technology Intel's Dynamic Tuning Technology Optimizes Performance and Efficiency
	Native Instruments Una Corda Native Instruments Una Corda: A Unique Sample Library for Soft Piano Tones
	Hybrid Mark Knight Expansion Hybrid Mark Knight Expansion by AIR Music Tech GmbH Review
	Helper-Equalizer Helper-Equalizer: Versatile Audio Tool for Custom Sound Tuning
	Helper-Saturator Helper-Saturator: A Promising Tool for Saturation Enhancement
	Ravage Lite Ravage Lite: A Lightweight Audio Enhancement App

Most Popular Downloads

	UpdateStar Premium Edition Keeping Your Software Updated Has Never Been Easier with UpdateStar Premium Edition!
	Microsoft Edge A New Standard in Web Browsing
	Google Chrome Fast and Versatile Web Browser
	Microsoft Visual C++ 2015 Redistributable Package Boost your system performance with Microsoft Visual C++ 2015 Redistributable Package!
	Microsoft Visual C++ 2010 Redistributable Essential Component for Running Visual C++ Applications
	Microsoft OneDrive Streamline Your File Management with Microsoft OneDrive