C.A.
All babies are different. I have friends that say their babies slept through the night at 6 weeks and others who have 5 years olds that still aren't sleeping through the night. I agree with the other posts about a routine: meal or bottle, bath, story, night light, fan, all help and my 16 month old sometimes sleeps 6-7 hours but often wakes to have his diaper changed in the middle of the night. Good luck! I know exactly how you feel :)