My ds just HATED his crib, from day one.
We put him in a big boy bed (actually a toddler bed) at a year old, and into a real twin bed at about 16 months (no frame). He can get in and out, but NEVER does. YET!!! :wink:
From the night we put him in the real bed, he has slept through almost consistantly. Had some rough patches related to teething, but SOOOO much better than before.
So, there's a success story, if you're interested in trying!!
FYI - we also completely (well, as completely as you can ever try!) baby-proofed his room, so that if he DID get up, he couldn't hurt himself. We also put one of those childproof door handles on the inside of his room, so he can't get out in the middle of hte night and go wandering around.