Awwww .... I have a happy waker too. He usually wakes up, spots me (we cosleep) and turns into a big fat barrel of smiles

DD#2 is the opposite. She is always horribly crabby when she wakes up, and is sort of like a wailing whinging zombie for about an hour. Even if she's just had a 20 minute catnap. And she's almost 3 so this has been going on for quite a while.