What would be considered "sleeping through the night"?

My 8 months baby still wakes up to feed around 2x between 7pm-7am. She'd sleep for 5-6 hours long stretch before waking up around 1am and 4am to feed then sleep. I'm curious: how long does your baby sleep to be considered "sleeping through the night"? 8 hours of uninterrupted sleep? What time does your baby start sleeping at night? #firstmom #sleepadvice ##firstbaby