Hello, I am ready to toilet train my 22-month old son. My question is with regard to leaving him naked and free for overnights. He currently sleeps in his crib overnight from 7pm-7am. This allows him no opportunity for 12 hours to get up and potty as he cannot climb out of his crib. Is it feasible for a 22-month old to “hold it” in a crib for 12 hours overnight? How should I approach this? Thank you!