My twin babies take breastfeed but unable to sleep after breastfeeding. And if I express my Breast milk and feed by spoon they sleep in 20-25 ml of milk. Can someone please help me on this

A. Mam it’s very difficult to make sufficient amount of milk for twin baby so if your kids are not satisfied you can give a little bit of formula milk to the child that is going to be healthy because with this child is going to be full for a longer duration