Isaac has found his voice. He loves to hear himself talk. He loves it so much that he wakes up at 3 and 4 in the morning just to talk. He will talk for about 45 minutes and then go back to sleep. It is so cute, but it is making me crazy. I read in a book that their sleep can be interrupted when they learn new things. I don't know about his, but mine has definitely been interrupted. I do love the sound of his sweet voice. I wish I knew what he was trying to tell me.