For this year's Prime Big Deal Days, the Oura Ring 3 is down to as low as $199 (from $263) at Amazon, but we don't expect stocks to last long.

I've tested many a sleep gadget this year from the best sunrise alarm clocks to the best smart beds, sleep earbuds and smart eye masks. And, the one product I'm always raving about is my Oura Ring. Not only does it help me learn more about my sleep, but also holds me accountable when it comes to sticking to a consistent sleep schedule.

While the new Oura Ring 4 has "Smart Sensing" powered by research-grade sensors and an algorithm for more accurate data, I found the older Oura Ring 3 to just as great a job of tracking my sleep and guiding me towards better quality slumber for less $$$. Hence why I recommend taking advantage of its lower price whil

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