The former member of the Beatles John Lennon and his wife, Yoko Ono, recognised the value of press attention that was focused on their nuptials and exploited this to petition for world peace.
The couple drew attention to the cause by spending two weeks in bed, the first at the Hilton in Amsterdam and the second at the Queen Elizabeth Hotel in Montreal.
It was at the second bed-in that the song "Give Peace a Chance" was recorded.
One of the lasting achievements of the protest, the song was an anthem for the anti-Vietnam war movement.
It has gone on to become an anthem for world peace and has been covered by a wide range of artists, including Elton John, Louis Armstrong and Aerosmith.
The attention-grabbing value of a bed-in as a method of protest ensured its replication worldwide.
In 2009 youths commemorating the 29th anniversary of Lennon's assassination staged a bed-in to voice concerns about climate change during the Copenhagen climate change summit. In October 2010, the One Movement Music Festival hosted a bed-in to mark what would have been Lennon's 70th birthday.