What is a sleep spindle?

Sleep spindles are a kind of noise barrier created by the brain; their presence seems to help us stay asleep when faced with noises and external stimulation that might otherwise wake us.

People whose brains generate more sleep spindles seem better able to sleep through the kinds of noise and interruption that might otherwise wake us up, whether it’s a snoring bed partner or an ill-timed car alarm on the street.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.