if you are swaddling him and with his arms free he cannot settle, i woudl put arms in (especially at 1 mo old) and do it extra tight - most people make the mistake of doing it too loose for fear of hurting baby - the point of swaddling is to make them feel secure and to create a feeling like when they were smooshed in the womb. my Dh was great at it and most men are - as they are less woried and just pull tightly.
have you seen the announcement with the aussie swaddle technique? this style works really well and as he gets older he can get to his hands even when they are wrapped.
with olivia - who could get out of even Dh's tighest wraps sometimes - we woudl just go in and rewrap and say night night again. repeat as many times as necessary. our longest naps definitely happened when Dh was on swaddle duty!
