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Sleep

Talking in your sleep is generally harmless, but there are a few cases where it can be cause for concern.
Sticking to the eight-hour rule could actually be giving you a worse night's sleep.
The changes boosted people's mental wellbeing and performance and reduced tiredness.
Yes, having less than 5 hours of kip a night is bad for you.
One more reminder that our furry friends are just like us.
The transition from sleep to wakefulness is far from instantaneous.
Health experts take a look at the arguments for and against.
Plus other tips to make your room more sleep-friendly.
Plus why you might be waking in the first place.