I have a couple of questions regarding swaddling. I have been reading Happiest Baby on the Block and it describes my LO to a t. I have been swaddling but I am concerned about how long each day I should keep her swaddled? How long each day do you swaddle your LO? My friend whose lo is 9 days younger, has hers swaddled nearly 20 hours a day and swears by it. Please help.