By news@appleinsider.com (Amber Neely) If you’ve been trying to find the perfect pair of in-ear sleep headphones, Kokoon’s new NightBuds combine a low profile and an in-ear optical heart rate sensor for comfortable sleeping and sleep tracking.Kokoon has released a second pair of sleep-tracking headphones— an in-ear model called the Kokoon NightBuds. Designed to help you get a better night’s rest, NightBuds work by blocking distractions and guiding you through helpful exercises via your …

Source:: Apple Insider