My son is just over 2 and doesn't like blankets. He's outgrowing traditional sleep sacks, and this one gives him the freedom to walk around without falling. Just to go down the hall to say goodnight to daddy, brush teeth, get another story off the shelf... before bed/nap. The added benefit is that it prevents him from being able to swing his leg over the crib bar to get out of his crib. Just wish it were cotton rather than microfiber.