My baby is 11 weeks old and I'm following the baby whisperer routine. I feed him every 3 hours and have him asleep after 1.5 hours of awake time. The first nap he takes in the day he does fine - he sleeps 1.5 hours or maybe even a bit more (only by 10 minutes or so) but the rest of his naps in the day tend to be much shorter and can range from 30 - 50 minutes but are not the recommended 1.5 hours. I do the exact same thing with these naps as I do with his first (successful) nap. I change his nappy in a dim room, swaddle him and put on some soothing music and put him in his crib. He has no problem drifting off to sleep (doesn't cry) it's just that he doesn't stay asleep as long for the second and third naps of the day. I try to get him back to sleep when he wakes up but that's a bit hit and miss. Yesterday I managed it and he slept for another 40 minutes but today I could not get him to drift off again. Any advice would be much appreciated.