How long is everyone sleeping at night?

M

My LO is 7 weeks tomorrow and for the past week (with the exception of two rough nights) she cut out one of her nighttime feedings. Last night was probably the smoothest and she only woke up once in 12 hours! We put her down at 7:00 pm, up at midnight, then slept until 7:00 am. Is that okay? She eats every 2 hours during the day so it's still 8 feedings in 24 hours. It just seems really fast to be sleeping that much! Of course I wake up throughout the night because it feels like I should be doing something, and my boobs are SO engorged by the morning. Just curious what others are doing at this age.