It’s so common for mothers to worry when their babies don’t sleep through the night. After all, everyone knows they’re “supposed to.” Some doctors recommend nighttime weaning and “cry it out” methods if your baby is not sleeping through the night by 6 months or even earlier. Even when the mom herself has no problems with baby nursing at night, she still worries that this is a problem, since American society seem to consider it one. There are books all over the bookstores with advice on solving so-called “sleep problems.”