To me it is when a baby sleeps through the night for at least 7 hours. (meaning I get a good night sleep). During that time, the baby doesn't wake to eat, play or be changed. I still consider when we put the pacifier in sleeping through the night, because she is never really awake--and is usually just fussing for it in her sleep.
to me it is when her booty stays in that crib from bed time to wake up time. i fear it's never going to happen. she does that garbage 6 hour sttn shizz but that does nothing for me at 2 or 3 am.
Re: Define STTN!
STTN: (n.)
1. the condition of being asleep for as long as it takes mommy to regain her sanity.
2. unattainable in the foreseeable future.