Weighted sleep sacks and weighted blankets are becoming more popular. Do you need a weighted sleep sack and will it help your baby sleep better? This post will explain what a weighted sleep sack is, the purpose, and discuss whether it will help your baby sleep better. What Is a Weighted Sleep Sack and Its Purpose? A weighted sleep sack is just as it sounds. It a form of sleep sack that has a little weight to it. But, why would a sleep sack need weight added to it? These sleep sacks and