His body was buried at the cemetery of Montparnasse beside his best friend and partner, Simone de Beauvoir.
As his life progressed, his health became a string issue for him as he did not put much effort into keeping his body healthy, and in 1970 and above, his health started the deteriorate. Eventually, he became blind and had no control of sight in 1973. Finally, he died in Paris on the 15th of April in 1980, two years after losing sight. His body was buried at the cemetery of Montparnasse beside his best friend and partner, Simone de Beauvoir.