In France, sleeping bags are used for babies from the time they are born. But in England they are recommended only for babies who are four months and above. After the age of four months or so, your baby is more likely to form a pattern of waking and sleeping and the intervals between feeds grow longer. The coziness of a baby sleeping bag can help reinforce this pattern, and give your baby the security he or she needs to sleep. Here is the info you need to know about baby sleeping bags:

* There are a number of things that disturb a sleeping baby - a wet nappy, hunger, pain or because they are feeling cold. Feeling cold is the most common reason that parents tend to overlook. As they sleep, their body temperature is lowered and if they have accidentally kicked off their blanket, they wake up, waking up the household. Using a sleeping bag will keep your baby warm without extra covers that can be displaced. As your baby can move and kick her legs in the sleeping bag as well, she will not feel constrained.
* Choose your baby's sleeping bag according to season so that he or she stays comfortably warm and does not overheat. Bags are given a TOG rating according to the warmth they provide, higher the figure warmer the bag. In winter a first-size baby sleeping bag should have a rating of 4 TOG - 2.2 TOG that is the average. In summer you'll need a sleeping bag with a lower TOG rating. When using a new bag, check it to ensure that the design and weight do not lead to overheating.
* Make sure that the room in which your baby sleeps is not too warm - the ideal room temperature for a baby is 18 degrees C (65 º F).
* Look for a sleeping bag with deep sleeve holes, so that the air has room to circulate thus preventing your baby from overheating. Underneath the sleeping bag your baby can wear a cotton sleep suit, pajamas or just a vest or T-shirt in summer.