Sleep/Nap Help

eanderson2

My son is almost 11 weeks old. Until about 2 weeks ago he was a good sleeper for his age. He would sleep from 10pm-3am and 4am-6am. Recently he has been sleeping from 10pm-1am, 2am-4am, and 5am-6:30am. He will go down the first time in his crib but after that he will not sleep unless he is being held. He also has never been a great napper. He will nap if you are holding him or in the car seat but will not nap in his crib. I hear other moms who have babies that are even younger than him that say their LO is sleeping up to 7 hours. Before bed I give him a bath, swaddle him, feed him, and snuggle him before bed. Last night we did a little of the Ferber method and put him down still awake and went in and soothed him after 3 minutes, 5 minutes, and he fell asleep during the first 10 minute interval then slept till 2:30am. Any suggestions would be appreciated on how I can get him to sleep longer at night and how I can help him to take regular naps in his crib.