Researchers have discovered that positive emotions enhance perceptual memories during sleep, particularly in the non-REM stage.

The frequency and duration of large muscle group leg movements during sleep change over time, and show distinct sleep stage differences.

The locus coeruleus is emerging as a major new area of research interest, with many important functions such as regulating ...

Some mornings, waking up might feel like interrupting a vivid alternate universe. You open your eyes to reality, but the ...

There is a dose-dependent relationship between alcohol and sleep, especially for REM sleep onset latency and REM sleep duration.

Taking longer to get to deep sleep or REM sleep can disrupt memory consolidation and emotional processing, affecting overall ...

During non-REM sleep, participants received auditory cues to reinforce positive memories and reduce negative ones.

What has puzzled researchers and philosophers for many centuries is the ‘why’ of sleep, along with the ‘how’. We human animals know from experience that we need to sleep, ...

Another study, this one in macaques, showed that synchronizing brain waves to reproduce patterns achieved in non-REM (NREM) sleep led to the same subsequent desynchronization and improvements in ...