Rolled over and laughed all in the same week! (No wonder she isn't sleeping)

Reese rolled over for the first time on Wednesday! She was laying on her back on the rug in Sawyer's room. I was reading Sawyer a story before nap time and half way through the book she rolled over onto her belly. I was so excited and tried to get Sawyer excited. I was trying to explain to him how this is the first time she was ever able to do this and he acted very uninterested. Like, so what mom, I roll over all the time. She was even able to get her arms out from under her and prop herself up. I don't think she will do it again any time soon though, she wasn't very happy being on her tummy. Then just the next day, Adam was in town visiting with us and Hani was holding Reese on the couch. Sawyer start flinging himself onto the couch, over Hani's legs. Reese let out a real laugh. So then of course Sawyer kept doing it. She laughed at least 5 times before the novelty wore off. She laughed again a few days later watching Sawyer catapult himself off the top of his fire truck bed onto the mattress! It was so darn adorable. She occasionally lets out a giggle to tickles from her papa or Itsy Bitsy Spider with me, but nothing like when she watches her brother. Only 4 1/2 months and she is already his biggest fan. All this progress has to explain the last 3 sleepless nights. She usually is asleep by 6:30 or 7 p.m. and then up around 3 a.m. and again at 6 a.m. But the last couple of nights it has been every 2 hours or so. Ugh! I am one tired mama.