Sleeping Through the Night

We've been trying to get the boys to sleep through the night for a week now. Gavin and Lincoln slept through the night immediately. Vaughn - who is NOT the identical twin - feels the need to set himself apart from the others. We call him Squeaky Wheel. He still wakes up for his 2am feeding. BUT last night he made it through the night to his 6 am feeding. I did have to pull him in bed with me around 4am when he started fussing. But then he went right to sleep. This is actually the third night - out of 7 - that he made it the whole night. Go Vaughn!!