Sleep sack for smaller baby

Shannie

I’m having trouble finding a good sleep sack for my girl. She was born with gastroschisis so she’s on the smaller size for weight. She’s almost 12lbs but she’s 63cm for height. The sack she’s in now for height Max’s out at 66cm but the weight “starts” at 13lbs so she hasn’t even reached the start of the weight 😆 I bought her a sleep sack at Walmart in a medium size which is 66cm and up but the weight starts at 16lbs which is just to big for her so she’s not comfy in it at all. I don’t want to keep spending money on trying different sacks but I also don’t want to spend dough on a expensive one either. ugh help 🥲