ahh both my DD and DS were like this, thankfully DD became a good sleeper at about 18 months as for DS hes just gone 2 and we have some nights of sleeping through! Before that it was every 3-4 hrs and before that you dont wanna know lol. One thing i figured out with DS was that he liked to play or have a small grizzle for a few mins before actually going to sleep, before i realised that i rocked or fed to sleep and it took longer and longer to work and he didnt sleep aslong either. Maybe just try a few different things to keep yourself sane?