my baby crying all night

Baby cries when they are hungry, irritated, or in pain. If they keep crying a lot then it's not good for the baby. Have the baby check up to pediatrician. If your wife doesnt do much to the baby maybe she's suffering from post-partum depression.

You don't give a lot of information there. Is it possible there is an issue? Too hot, too cold, hungry, nightmare? It could be an illness (ear infection, teething) like GERD (acid reflux disease) or simply teething. My children were and some still are co-slept. They have their own beds and rooms but on occasion have been known to crawl into bed with us during the night for comfort. My youngest was co-slept up until about a month ago. He's about 20 months now. He's done well in the transition from co-sleeping to sleeping in a crib but it was nice to have that close relationship of co sleeping and made night time parenting so much easier (along with night nursing when he was nursing, he weened at 15 months).

baby always cries if the child is have any pain or if the child is hungry or else the child will never cry, my mom use to tell me this when my son was born. so everytime i use to treat him whenever he use to cry like i use to just touch and press slightly his stomach to see whether the baby is having pain there when you do this the baby cries more and i use to understand that he is having pain there and i use to apply him somethig there, in this way we can check it out for the baby and try feeding the baby if the child is hungry or what? allowing the baby to cry whole time is not a good sign as may be it will spoil the health of the baby and hence it is better to find what is the reason behind for the child to cry.