Sleep, sleep, sleep....

So I'm finding that sleep is the biggest issue every day!  Somedays she sleeps during the day...sometimes not so much...sometimes she sleeps well at night, sometimes not so much...  Yesterday she turned 4 months old and I keep hoping that I'll stop worrying about sleep...or that one of these days she'll sleep through the night and it'll be like that forever!  I know it's a wonderful dream but between her starting to sit up and she's still teetering on the edge of rolling over!  She is getting up on her side everyday and it's just amazing!  And yesterday she held her bottle by herself!  Every day she does something new but the sleep thing is crazy!!!