Articles on sleep science

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We know that lots of animals, maybe all animals, sleep. Cats, dogs, even worms and jellyfish sleep. But we still don’t know exactly why they started sleeping. Marcella Cheng/The Conversation

Curious Kids: Do animals sleep like people? Do snails sleep in their shells?

Pond snails use things like rocks or the side of their aquarium as their bed, attaching themselves while they sleep. This might not seem very relaxing but their shells do hang away from their body.
Cars are often warm and comfortable and we are usually feeling safe and relaxed. Marcella Cheng/The Conversation NY-BD-CC

Curious Kids: Why do we always fall asleep in cars?

You might be trying to catch up on sleep. Sleep scientists say some children need only nine hours of sleep at night, while others need as much as 11 hours. It depends on the person.
Donald Trump pretending to sleep. The Republican candidate says four hours is enough sleep for him. REUTERS/Jonathan Drake

Even presidential candidates need sleep

Sleep is essential for good executive functioning and for good general health. So how do candidates keep up the grueling demands of their schedules?

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