So Liv has been an awesome sleeper since she was born. Always at least 3 hour increments at night, and sleeping through the night (7:30pm-7am) with one feeding at 3am since she was 6 weeks old. BLISS. But the last two nights, she has gone down at 7:30, wakes up at 1:30 or 2, then keeps waking up every 1.5 to 2 hours. She only wants to eat at one of the wakings (the usual 3am one) and for the rest, she smiles when I walk into her room and will go right back to sleep as soon as she knows I'm there. At first I thought it was the time change, but now I'm thinking its the 4 month sleep regression (she is 3.5 months old.) Is there anything I should be doing for this? Its exhausting. I got more sleep than this when she was a newborn!