Every Friday night for 23 years, Zeli Rossi has traded his bed in Brazil's southeastern state of Minas Gerais for a coffin.
Rossi tells the G1 news website that his weekly sleeping habit became public last month when his 14-year-old grandson wrote a story about him for his school's newspaper.
Rossi says he sleeps in the coffin to honour a deceased friend.
Long ago, the two promised each other that whoever died first would have his casket bought by the other. Rossi's friend bought him a coffin when he mistakenly thought Rossi had died in a 1983 car crash.
When the friend died in 1988, Rossi started sleeping in the coffin to honour his memory.
And he also kept his promise to buy the dead friend a "brand new" casket.