Home > Medical > Sleep Sleep All sections in Sleep » About Sleep » Health Tips » Insomnia » Research » Narcolepsy » Sleep News » Sleep and Diet » Sleep and Travel » Snoring Sleep apnoea may boost risk of sudden cardiac death Study findings bolster suspected link between sleep disorder and heart-related death. Consistent bedtime helps sleep apnoea Active jobs tied to unusual amounts of sleep Insomniacs often have suicidal thoughts 'Catch-up' sleep may cut young drivers' crash risk See All Sleep News » Sleep Overview Sleep disorders Sleep apnoea The sinister side of snoring Insomnia What is Sleep? For middle-aged adults, sleeping less than six or more than eight hours a night is associated with a decline in brain function. Sleep disorders may include insomnia and other sleeping disorders such as sleep apnoea, narcolepsy, restless leg syndrome, sleep terror disorder, and REM behaviour disorder. Take Action Quiz Sleep-deprived? » Sign up for the newsletter » Like us on Facebook » Create bedroom harmony All about napping advertisement About sleep Superior comfort and support What sleeping positions say about you What happens during sleepwalking 5 types of nightmares See All About sleep » Insomnia What noise keeps you from sleeping? Just how much sleep is enough? The shock of a sleepless night 8 types of insomnia See All Insomnia » Narcolepsy 6 bizarre sleep disorders Asleep on your feet Narcolepsy See All Narcolepsy » Snoring and sleep apnoea Silence anti-snoring spray Dealing with sleep apnoea Snoring: what can be done? A battle for breath See All Snoring and sleep apnoea » Health tips 5 apps to help you sleep Too much sleep: FAQ Simple solutions for tiredness Natural remedies for shut-eye See All Health tips » More from the research labs The sinister side of snoring Apnoea sufferers have different palates Lifestyle change eases apnoea Bad sleep affects outlook on life See All More from the research labs » Sleep and travel Asleep at the wheel Stay awake behind the wheel Antihistamines can impair driving skills See All Sleep and travel » Tools Are you sleep-deprived? See All Tools » From our sponsors Keep your family healthy this Winter Don’t be taken by surprise this Winter. Keep your defences up with Vital Hop, skip and jump through Winter with Hill’s Pet Nutrition Age-related bone loss is higher in women