Optimize your workouts through better sleep! Sleep plays a critical role in improving workouts. Zeo measures physical and mental recovery: Deep and REM sleep. If you know how much your body has recovered, you can learn to optimize your running. Gain the edge you need with the data to achieve your goals faster. Better sleep means easier weight loss and reaching your fitness goals more quickly! Team RadioShack and US Triathlete Champion Jarrod Shoemaker are using Zeo to train smarter and win more races. Imagine how it can help you achieve your goals. Synchronizes with RunKeeper so you can see all of your sleep and fitness data in one place. Once you have the device, to link the sleep monitor to your RunKeeper account, go to your RunKeeper.com settings ->apps and find the ZEO settings