Very silly question. My baby is growing so fast already moving on to 6m pj and they aren't even…

Very silly question. My baby is growing so fast already moving on to 6m pj and they aren't even loose on him he is to long bc they have feet in them. anyways I just realized none of the arms have fold over mitten the one night I let him sleep in them he woke up with freezing hands poor baby so who knows brands that have the little mitten in the arm in larger sizes all his nb had them and most of his 3m Carters as well