Listen to Tranquil Seas online. Tranquil Seas is an English language song and is sung by PianoDreams, Thunderstorm Sleep and Baby Sleep Through the Night. Tranquil Seas, from the album Secrets of Deep Sleep - 20 Blissful Relaxation Melodies for Deep Sleep, Meditation & Yoga Sessions, Total Stress & Anxiety Relief, Better Health and Happier Mood, was released in the year 2017. The duration of the song is 3:21. Download English songs online from JioSaavn.