I would suggest having him come everyday for 3-4 weeks to get him adjusted .... Do you have a lot of high energy kids or is it pretty low key? If its high energy then yes I would suggest what the above poster said and put him in a play pen with a few toys or try putting him in a stroller or wagon and taking him outside ... Change of scenery plus the fresh air makes tired babies. During lunch instead of waiting for him to feed himself pop a few things in his mouth or spoon feed him some yoghurt or oatmeal just to get something into him ..... But he really needs to come everyday for the first while .... It still may take a while depending on how stubborn he is