Hey all! Does any one have any reccomendations for warmer sleep sacks? My daughter is 4 months old and we have been using the cotton/muslin halo sleep sack since I stopped using the halo swaddle. She is almost outgrown the size I have and the weather is getting colder here (Canada) and I am looking for more of the plush/thicker type. There are so many brands and types out there. Just wanted to hear what people like or don't like or are they are pretty much the same. Thanks!!