Infants loose a lot of heat from the top of the head and the feet. Hence it is advisable to cover the head and feet especially in cold weather.

thanks Sonali for your response, so this means we shud make them wear cap while they are asleep as well? n another thing my baby sweats wehever I make him wear the cap, watcan I do in this case

Yes make the baby wear the cap while sleeping for sure. Sweating in an infant is very common. Wipe the sweat with a napkin when baby is awake. Also make sure you change the cap a couple of times a day and use a freshly washed one to prevent infection breeding in the cap.

yes. pls do in cold and windy weather. their temperature regulation system isn't fully matured yet. while you take these precautions avoid over heating as well.

oh great...thanks Sonali n Payal for your response... I really appreciate this.. thank you...