A Calm Radio exclusive, music designed for sleep using cello. Cello for Sleep was curated by one of Calm Radio's cellist musician team members to assemble the most relaxing music mix for your perfect sleep. We have selected only the most hypnotic, monotonic, calming music tracks. These soothing and gentle cello performances are sure to put you into a state of deep relaxation and an incredibly refreshing sleep. For Premium members, it is an incredible 3 hours long.