“What we would look for in a crib sheet is something that fits the mattress snugly that won’t detach. We worry about the sheet detaching and becoming a suffocation risk,” says Dr. Benjamin D. Hoffman, the chair of the American Academy of Pediatrics’ Committee on Injury, Violence and Poison Prevention. “The right image of a baby sleeping is a baby on a flat firm mattress on their back with nothing else.” As for whether you go organic, “Cotton or organic cotton, that’s absolutely your choice,” says Hoffman. Every product on Fatherly is independently selected by our editors, writers, and experts. If you click a link on our site and buy something, we may earn an affiliate commission.