A sleeping bag is the safest form of covering your baby during sleep. Thanks to it, the child will not dig up, will not cover its head, and will be evenly wrapped all night. 
The sleeping bag is designed so as to make it as comfortable as possible to change the baby without cooling down the body. There are two press studs on the shoulders, and the zipper opens completely. This makes it possible to fully open the sleeping bag, so as not to put it over the baby's head and not have to slide the handles through the holes. Just opening the zipper, without undoing the naps, allows you to change the diaper without revealing the top. 
The sleeping bag is made of a very delicate cotton fabric with the Oeko-Tex Standard 100 Certificate, inside it has antiallergic silicone filling, so it is an ideal alternative to quilts and warm blankets.