As the Vietnam War raged in 1969, Yoko Ono and her husband John Lennon held two week-long Bed-Ins for Peace, one in Amsterdam and one in Montreal, each of which were intended to be non-violent protests against wars, and experimental tests of new ways to promote peace. The idea is derived from a `sit-in`, in which a group of protesters remains se..... Found on http://en.wikipedia.org/wiki/Bed-In