As for the wood,, any good light oil will do,, lemon oil, tung oil,, just put it on evenly and let it sit ( I like overnight) and wipe down or buff next day !! That gives the oil time to be absorbed into the wood !! After a few days repeat the process !! It may need several treatments !! You can tell that the oil is being absorbed because the wood will go a bit dull in spots after a few days !! Storing furniture dries out the wood and will cause joints to get loose !! You can mist the underside with warm water and a hand sprayer to add moisture !!