Unfortunately not convenient at all!! The baby's hands come out from inside, causing the fabric to swell at the zipper area and reach the baby's face. I don't understand how they can say in comments that it is nice and tight when it says 0-3 months and does not fit well on the baby's body at all. To be tight, I imagine the baby should weigh around 7 kilos, so for a 5-month-old baby, which is almost the weight, you should avoid it!. I tried it about 5 times in two months, it was big and every time I was anxious because I saw her getting nervous and struggling with her hands, which seemed to be forming a circle inside, united with her hands and not being next to her sides. Again, two times in three months, when she is 5 and a half kilos, the same result, no resemblance to the babies in the photo. I don't know if I am being understood by any mom, but unfortunately I regretted spending the money on it and I still use a much cheaper sleeping bag where the hands remain in a straight line, but unfortunately I have to take it off completely for diaper change.

The fabric is of very good quality and holds the child tightly.. The only small downside in my case is that the zipper "puffs up" quite high near the baby's face

It is worth it for a newborn baby. It helps him to sleep. Also, you don't need to struggle at night because it has a zipper. Lifesaver!

A lifesaver for a two-month-old baby who had difficulty sleeping and woke up easily. It keeps the (otherwise flying hands) inside. We have been sleeping with this only for the third month and still. The only complaint is that the zipper often opens if not closed with great care, both in this model and in the 2.5 tog model.