Normal sleep for infants, adults and the elderly

Normal sleep is divided into non–rapid eye movement (NREM) and rapid eye movement (REM) sleep. The stages of sleep are stage I (light...

Sleeping tips for a good nights sleep

Sleep does not come easy to some and some of us have periodic difficulties with that elusive sand man. A few tips on what is best for...

Sleep is a behavioural state characterised by little physical activity and almost no awareness of the outside world. We all know when we...

Obstructive sleep apnea-hypopnea (OSAH) is characterized by recurrent episodes of upper airway collapse and obstruction during sleep....

Insomnia is the most common sleep complaint. It is a perception that sleep quality is inadequate or non-restorative, despite the...

The term restless legs syndrome (RLS) was used initially in the mid-1940s by Swedish neurologist Karl A. Ekbom to describe a disorder...

Periodic limb movement (PLM) disorder is unique in that the movements occur during sleep. Most other movement disorders manifest during...

Narcolepsy is characterised by the classic tetrad of excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, and sleep...