J., I had the same problem with my son who is now 11 years old. The dr.'s said some babies are sleepers, and mine was not. I would put him in the swing, on the washer and dryer (while running), drive him in the car and nothing worked. He would be up before dawn until late at night. If he got 15 minutes nap that was alot. I even tried the cereal to fill his stomach, and all that did was make him a fat sleepless baby.
Now at 11 he sleeps but from 10:30pm to 6:30am. I never get to sleep in. Funny thing though, my 2 child, she would sleep 13 to 14 hours straight. I worried about that and the dr (not the same peditrician as my sons) said, "Maam be lucky cause you have a sleeper. Nothing to worry about, just check her breathing and she'll be fine. Now 4 years later and she is great.
Good luck finding the information you need.