What is a jackknife sofa?

A jackknife sofa is a type of sofa commonly found in RVs and motorhomes. It is designed to fold out into a bed and easily transform back into a sofa when not in use. The name "jackknife" comes from the folding mechanism, which resembles the motion of a jackknife. The backrest and seat cushions pivot forward, and the bottom section of the sofa folds down to create a flat surface for sleeping. Most jackknife sofas come with storage compartments underneath the seat cushions, making it an efficient use of space. They are typically made with durable materials that can withstand the wear and tear of traveling.