Can you fail to get to sleep badly tonight?

Gukak(Korean traditional music) is a stable music of best functionality that is widely known having a similar wavelength like sound of a forest, waterfall sound of nature and etc. Particularly, Gukak have an effect sleeping well.

“Love and enjoy the arts with Gukak” adds a white noise with Gukak sounds. For the reason, you feel the comfort of your mind and body. A white noise is a functional sound that decreases the heart rate and controls breathing and has a stable effect. So many sound apps use a white noise.

“Love and enjoy the arts with Gukak” has been proven efficaciousness through verification process using a measuring equipment of human brain by specialized sound agency. This app has stable effects of sleep and mind and body. Please live free from care.