In his review of "Sleeping with an Angel", Larry Flick from Billboard wrote, "Here is a total change of pace from the act's previous Euro-NRG hits.

Cruising at a chilled pop/hip hop pace, the track's instrumental arrangement combines delicate piano lines with a rubbery bassline and diamond-hard beat.

"[5] Dave Sholin from the Gavin Report said about "Ooh Boy": "The Class of '96 were babies when Rose Royce charted with this song in 1978.

It takes the well used line, 'Ooh Boy I love you so, never ever gonna let you go, once I get my hands on you', and puts it in a brand new context, and the novel creation works well.

"[7] People Magazine said that "group leader Olaf Jeglitza broods like a rapping cowpoke stuck in a tacky rhinestone-studded suit" on "Sleeping With An Angel".