Covers:

1971:

Renee Armand [as Lost in same film; different lyrics, same melody]

1974:

Sounds Of Sunshine [in TV series The Young And The Restless]

1976:

Barry DeVorzon & Perry Botkin Jr. [top 10 US as Nadia's Theme (The Young And The Restless); released following an ABC sports coverage of the 1976 summer Olympics in Montreal using Cotton's Dream under Romanian gymnast Nadia Comaneci's routines; Nadia never used this music for her floor exercises]

2002:

Mary J. Blige [sample piano melody in No More Drama; top 20 US, hit R&B]