Nightmare disorders explained

Nightmares

What are nightmares? The word for nightmare is derived from the Old Norse mara,  a mythological demon that sat on sleepers’ chests evoking scary dreams as a way to torment humans. Scientifically … Read more

Hypersomnia and extreme sleepiness

Hypersomnia and excessive sleepiness

What is hypersomnia? Hypersomnia is a sleep disorder characterized by extreme sleepiness. It can cause excessive sleep during the day as well as prolonged sleeping hours during the night. Hypersomnia … Read more

REM sleep behaviour disorder (RBD)

REM Sleep Disorder

What is REM Sleep Disorder? REM sleep disorder is a neurological disorder which specifically affects the REM stage of sleep. In order to understand the condition we first need to … Read more