Have you noticed that sometimes, having slept just 5-6 hours, you can wake up awake and rested, and sometimes you get up after a healthy eight-hour sleep - and as if squeezed lemon? And the reason for this paradox is in the phases of sleep: the phase in which we were at the moment of awakening determines our state in the morning.
After all, as you know, sleep is a cyclical process consisting of 2 main phases: REM sleep and slow sleep. During each such cycle, we experience different levels of readiness to wake up. It is best to wake up in the stage of fast sleep - the one during which we see dreams.
But how to determine when there will be a period of fast sleep, and even wake up? That's exactly why Innovative Sleep Solutions has come up with the original SLEEPTRACKER watch.

With the help of an accelerometer, which detects movement in a dream, the watch determines the stage of sleep and the best moment for lifting. You only need to set the time when you go to bed (you need to control the quality of sleep), the time of awakening, and the time interval during which you are ready to wake up. And in the end, instead of waking up tired at 7 o'clock in the morning, the clock will wake you 10-15 minutes earlier or later, but awake and quite sleep! :)
')
The only thing - the price. For the Standard version you will have to pay $ 149, and for the Pro - $ 179. In the first one, the design is simpler, and in the second, along with the new design, we added a USB interface to synchronize the dream history with a PC.
www.sleeptracker.com