My child used to latch to sleep and wake up several times in the middle of the night too. What I did was to put a bottle of water in his cot and if he wakes up, I'll just give him some water to suck. With this you can also gauge whether he is really hungry or just sucking for comfort (eg if he drinks alot, means he must be quite hungry). You can also use a pacifier and see if your child falls back to sleep. Also, it's best not to be the one feeding the child as they can smell you and tend to want your breast.
Btw you will need to do this for at least a week for the child to get used to the routine. Good luck!
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