Bed-In
During the Vietnam War, in 1969, John Lennon and Yoko Ono held two week-long Bed-Ins for Peace in Amsterdam and Montreal, which were their non-violent ways of protesting wars and promoting peace. The idea is derived from a "sit-in", in which a group of protesters remains seated in front of an establishment until they are evicted, arrested, or their demands are met.
The public proceedings were filmed, and later turned into a documentary movie. The film Bed Peace was made available for free on YouTube in August 2011 by Yoko Ono, as part of her website "Imagine Peace".
Read more about Bed-In: Amsterdam Bed-in, Montreal Bed-in, In Popular Culture and Later Bed-ins, Commemoration