A few weeks ago when I was out cycling with some friends, we saw a few birds who looked like they were sleeping. Someone asked me what they were doing, and I said they were resting or sleeping but I'd ...

Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and even jellyfish sleep. Sleep is universal “even though it’s actually very ...

We’ve all had a bad night’s sleep, with a snoring partner, a crying baby or neighbours having too much fun. Sleep disturbances are common and have unpleasant consequences the day after, including ...