My son sleeps really well at night (lately 8:00pm until 6:00am without getting up once). I feed him at that time and he usually sleeps until around 7:30/8:30. I know...I'm lucky and can't complain. But this all comes with a very high price. My son DOES NOT sleep during the day and he gets extremely cranky. I thought it was b/c I wasn't putting him down the same way and cuing him to sleep. So the other day I did exactly what I do an night with him to signal sleep: swaddled him, played lullaby music, made sure the room was dim...everything except a bath. I nurse my son to sleep at night (I know I know...but it works) and try to do the same during the day but everytime I go to put him down in his crib during the day, he wakes up. If I do manage to get him down, he only sleeps about 30 minutes maximum. What am I doing wrong? Why won't he sleep besides these little tiny cat naps, if any? He is so cranky during the day and cries and cries.