I have tinnitus from 25 years in the army as an artillery officer. The ringing magnifies when I lie down to sleep at night...it used to keep me awake for hours. I sought help and it was recommended that I download a soothing sound app. So I searched and I found Nature Space and I am so glad I did! I set the timer for three hours and play my favorite sound, infinite shoreline, and within minutes I am sleeping! It is wonderful!