Why does the wood in your couch and recliners squeak?

Usually, squeaking in furniture is caused by wooden and/or metal parts rubbing against each other.

In recliners, lubricating metal connections with a small amount of oil (small so it won't drip on your carpet), may eliminate some squeaks.

Wood-to-wood squeaks can sometimes be eliminated by installing additional screws or bolts to prevent movement. Another alternative is to disassemble joints, where feasible, and re-assemble using glue and longer or tighter nuts or bolts to prevent movement.

If the squeaking comes from wooden parts that are SUPPOSED to be moving, lubricating the surfaces with silicon spray or wax can help to eliminate the noise.