Back is Best?

Brooks has gone through different positions of sleeping throughout his 10 months of life. He went from being swaddled to not swaddled, to swaddled again, to a sleep sack, and now to a wearable blanket. He has slept in his crib, in my arms, in his swing, on the airplane, in the car, in the baby bjorn, on the floor...just about anywhere.





I got him a wearable blanket called the halo sleep sack. I want to make sure he stays warm through the chilly Colorado nights. Here is a picture of what it looks like (this is obviously not a picture of Brooks since this child is clearly Asian):

The interesting thing about this thing is that on EVERY single one that was at the store, it has a place on the blanket where it says, "Back is Best". I guess no one mentioned that to Brooks. 90% of the time I see him sleeping on his tummy (ever since he learned how to roll over).
Here is an adorable picture of Brooks sleeping and cuddling his favorite blankie, he's not in the new blanket, but it is still so cute:

The more I talk to "experienced" more, the more they say they put their second of third child on the tummy to begin with. I think it's one of those debates that goes back and forth. At this point, I just care that Brooks is comfortable and sleeping well.