my one month old baby sleeps while breastfeeding but as soon as I shift him to the bed he wakes up.what is the reason

A. That’s because kids are very comfortable when they are sleeping and taking a feeding in the lap and then the sleep so when you try to change the position they get disturbed which is completely normal suppose when we sleep if somebody tries to push change the side then we also wake up so it’s the same thing with the child as the sleep is very you know like sometimes which is why they wake up