Our four-month-old is suddenly sleeping like a one-month-old.  The past week or so she has woken to eat once at her usual time (between 12 and 1:30) but wakes up every 10 to 30 minutes (usually eating once) from 4:30 until her *official wake-up time at 7am.  The problem seems to be pacifier related – when I put the pacifier back in her mouth she usually falls asleep quickly.  Bill and I have considered pacifier weaning for awhile now.  I’m meeting with the pediatrician tomorrow and plan to make some changes later this week.  Keep your fingers crossed for us – mom needs more sleep!