Earphones and headphones can be used for all manner of things, from music to podcasts and more, but depending on how solid your sleeping patterns are, you might also be relying on a pair to send you to slumber town. A pair of very small in-ears can last anywhere between three and nine hours of life, and that might just be enough to get you to sleep, provided you’re playing something calming, or even some white noise or the sounds of rain.
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