My son has turned year old last week and for the past month or so he's been sleeping less in his bed and is more agitated in the night.
Our current tuck in protocol is between 19:00 and 20:00 (depending on the naps during the day) my wife gives him breast until he falls asleep and then I carry him to his room where he will sleep for 3-5 hours, then he wakes up, we take him to our bed and then he spends the rest of the night glued to the breast.
Previously after he woke up we were able to get him back into deep sleep so that he could be moved back to his bed, but nowadays his sleep is either too shallow and he can't be moved (but he'll sleep with us calmly) or he'll wake up very 20-30 minutes crying, demanding breast, making it difficult for my wife to sleep.
He refuses to drink formula and he refuses to drink breast milk from the bottle, the only thing he tolerates in a bottle is water. He also won't suck on a pacifier. When he wakes up in the night he also won't get comforted by holding him in arms in any position, this just results in him crying and waking up even more.
At this point we're not really sure what to think and what to do. Reading online it seems that some children are like that and he'll outgrow the need to suck at night which I am fine with. We just need a way to keep him calm during that time so that all of use can actually sleep.