From birth until baby shows signs of trying to roll over. "SWADDLE UP is specifically designed to let your baby sleep in a natural ARMS UP position. This allows them to bring their hands to mouth for self-soothing during sleep time, resulting in more sleep for everyone." , , Size: , Newborn: 2.2-3.8 kg/5-8.5 lbs. , Small: 3.2-6 kg/7-13 lbs. , Medium: 6-8.5 kg/13-18.5 lbs. , Large: 8.5-11kg/18.5-24 lbs. , Always use according to baby's weight not age., , TOG stands for 'Thermal Overall Grade', which is a unit of measurement used to calculate the thermal insulation of a product, usually in the textile industry. Our sleep garments are given a TOG rating according to the warmth they provide. Basically, the higher the TOG, the warmer the product. Note, a higher TOG rating doesnt necessarily mean a thicker garment., To help parents understand which TOG values are right for differing room temperatures, a set of guidelines has been established as per below:, The table provides you with guidelines around how to dress your baby based on the room temperature., 0.2 TOG - ideal for room temperatures between 24° and 27°, 1.0 TOG - ideal for room temperatures between 20° and 24°, 2.5 TOG - ideal for room temperatures between 16° and 20°, 3.5 TOG - ideal for room temperatures below 16°