The original song is "Only You" by the Flying Pickets, but it has been covered by someone, and I'm unable to find who covered it.
the holloways.
gossling
Rihana
Patti Page sings the song titled "And So To Sleep Again"
The Romantics
Cat Stevens
Jay Z
Vanessa Morgan
Hum - Stars
She sings French in her song "Promise This"
The group The Faders made the song, No Sleep Tonight.
The band Tenacious D made and now performs the song "Master Exploder".