• Know there will be regressions. Teething, illness, vacation and routine shifts all can lead to poor sleep, and that’s all right, Vance says. “Often, you may have to go back to training for a day or two to get back on track, but you won’t lose ground. If your child has been trained to be a good sleeper, one week off schedule because of vacation won’t change that.”
There’s also no need to institute a regimented cry-it-out plan if what you’re currently doing is working for your family. But good sleep habits never hurt, and being able to fall asleep on one’s own is a necessary life skill. If you sleep-train at a time that’s developmentally appropriate for your baby and with the basic ingredients of healthy sleep in place, you can minimize the amount of crying your baby (and, let’s face it, you) will do.