The pattern is actually part of a set of 3 patterns. It's called Easy Knit Baby Blankets: Collection 2. There's a pattern for a Pure & Simple blanket, a Waves of Blue blanket, and then the Heart blanket.
I just found it on the Fiber Trends site under Baby & Child patterns. It's pattern # CH-24. I also found it here
, but if you Google the pattern name you could probably find it elsewhere as well.
Hope this helps, and thanks for all the comments. It really was an easy knit, just time consuming.