It’s really hard to measure “a good sleep”, and to compare it between different people, especially without an electroencephalogram( EEG) or something. But what is really hard to measure is your performance and especially memory and reactivity performance.
In our mobile app, you have access to some simple tests that you can use to evaluate how much more efficient you are. Our tests come from fatigue evaluation standards. One of these tests is a standard memory test: you learn 50-word associations (eg city: Chicago) before going to sleep, and you try to recall as many as possible when you wake up. You just have to compare your performance between a stimulated night and a standard one and you have your improvement.
To be rigorous, you should train until you don’t see a significant progression in your performance, then sleep with NanoNap, and compare. This way, you avoid the training effect on performance. You can activate the placebo program so you won’t know if you are stimulated with the right stimulation, and see the results, avoiding the placebo effect. That’s how we proved that it works, with 19,8% memory improvement for millennials.