This is my second sleep sack from SwaddleDesigns. (I loved the first one so much I purchased a second one to have when the other is in the wash.) This sleep sack is cozy. My baby is warm throughout the night with no extra blankets. The fabric is soft and has held softness even after washing. The color is vibrant and beautiful. (I love that it is dark and does not stain easily.) It zips both from the top and the bottom making for easy diaper changes. Truly a baby product that is worth the investment.