Songwriting-production team Holland-Dozier-Holland had left Motown Records in 1967 over a dispute about royalties, and set up their own label, Hot Wax/Invictus, shortly after.
Joe Stubbs, formerly of Motown groups The Contours and The Originals, was made co-lead singer, along with Steve Mancha (who provides lead vocals on this track).
Written by General Johnson (lead singer of Chairmen Of The Board), Angelo Bond, and Greg Perry (who also acted as producer), the song depicts a cheated lover discovering evidence of his woman's infidelity, quoting liberally from the folk tale "Goldilocks and the Three Bears".
Although the group would continue to score R&B hits up until their break-up in 1973, none of their singles reached the same level of success.
"Somebody's Been Sleeping" also sold over a million copies and was certified gold by the RIAA.