Sleep Through The Night

At 2 months check up, doctor said Wyatt can start sleeping through the night according to his weight.  I thought it's not possible cuz Ethan wasn't able to sleep through the night til he was about 1 year old.  

On Sept. 16, Wyatt slept around 10:30 and didn't wake up til 4:45 or so.  Last night, he slept around 11 and didn't wake up til 6.  Even though he didn't wake up in the middle of the night, I still couldn't sleep through the night cuz I got to wake up to pump and also check on both Ethan and Wyatt (see if they are covered with blanket or not).