All Diapers Not Equal

Grandma just got pee'd on! We finished our first package and moved on to a new type within the same pampers line. Supposedly they say one diaper equals one night (personally I cant imagine someone letting their baby go all night without a change) but they lied to us.
Grandma was holding in between feedings and singing when Belle did her business and it ran out of the diaper!! What kind of absorption is that?? Looks like a trip to the store for the first type we bought! Thanks Grandma for taken one for the team and let's all be thankful it was just urine ;)

Tchau,
Sara