Sometimes a short power nap is just what you need to take on the rest of the day. This sessions begins in Alpha and quickly brings this listener down to Delta frequencies perfect for deep restful sleep. After some point of deep sleep the audio will gradually bring you back up through theta, alpha, and finally end with beta frequencies that will leave you feeling focused, alert and refreshed.The brainwave entrainment session provided is not meant to replace or substitute the recommendations or advice of your physician or health care provider. This video should not be used for diagnosing or treating a health problem or disease. If you believe you have a medical condition or problem contact your health care provider.How Loud Should The Volume Be?There is varying advice and opinions on the impact of volume with brainwave entrainment, with some saying the louder it is the more impact it has. From my own experience, my advice is to play it at a volume level you feel comfortable with. The main thing to consider is that it should be loud enough to hear the repetitive isochronic tones, so you don't want it so quiet you can hardly hear them. But you also don't want it so loud that its uncomfortable for you. Somewhere in the middle is my recommendation. Because you are trying to fall asleep with this track, I'd start off by trying a lower volume and see how you respond to that.It's a bit obvious for something that will help you sleep, but don't use to this app while driving or operating machinery. It is not recommended to listen to this while under the influence of drugs or alcohol, or any mind altering substance.