But the singer, who's famous for his monstrous proboscis, is maintaining his typical self-deprecating humor about the injury.
"I veered to the left instead of the right and slammed right into the wall," Manilow said. "I may have to have my nose fixed and, with this nose, it's going to require major surgery."
The 56-year-old singer said Tuesday that he'd returned to his Palm Springs home after spending two weeks in Malibu working on longtime friend Bette Midler's upcoming Rosemary Clooney tribute album.
In the middle of the night, he awoke disoriented and walked into a wall. He passed out for four hours after the accident but was OK, his manager said.
Manilow, whose hits include "Copacabana," "Mandy" and "Tryin' to Get the Feeling Again," said he'll seek a doctor's advice about whether to have surgery.
LOS ANGELES -- Linkin Park lead singer Chester Bennington was admitted to a hospital with what the group's label described as an attack of severe back and stomach pains.
Bennington, 27, went to a Los Angeles-area hospital Friday, Warner Bros. Records said Tuesday.
"Doctors are still trying to determine the cause of the ailments," band manager Robert McDermott said.
"All touring and video shoot plans in Europe have been put on hold this month as we wait for him to get better," he said. "We wish him the best and will keep everyone posted as to his condition."
LOS ANGELES -- Stewart Copeland, former drummer of The Police, has reached a settlement with members of The Doors 21st Century in a breach-of-contract lawsuit.
Details of the settlement won't be released, band publicist Todd Brodginski said Tuesday.
In the $1 million lawsuit filed March 7 in Superior Court, Copeland claimed keyboardist Ray Manzarek and guitarist Robby Krieger, members of the 1960s rock band The Doors, reneged on a promise to use him during an upcoming tour and album.
"We're glad we were able to resolve this matter, and we wish Stewart all the success in the future," Manzarek said in a statement from the band's publicist.
Copeland had been replaced in February.
"I for one am a fan of The Doors. The world is a better place with Ray and Robby out there playing those songs," Copeland said in the same statement.
The concert tour began in March, and resumes on June 20 in Detroit.
In a separate case, drummer John Densmore, the third remaining member of the original Doors, sued Manzarek and Krieger in February for going on tour without him.
Densmore's suit claimed that after lead singer Jim Morrison died in 1971, the members agreed that any future profits from The Doors' music would be split between them and that the band's name would not be used unless all of them were involved.
On May 13, a judge denied a preliminary injunction barring Manzarek and Krieger from using the band's name on their concert tour, but withheld a final ruling in the case.