</P> <b>Size:</b>Lenth 100 cm(Baby height 39-43 inches) </P> <b>Thickness: </b>2.5 TOG ,suitable for winter, spring and autumn, for use in room temperature between 59℉ and 68℉. </P> <b>Material: </b>The outer and inner layers of these comfortable sleeping sack for babies are made of 100% organic cotton muslin (with a soft polyester filling) </P> <b>Anfirish</b> sleeping sack ensure that your child is always covered and <b>warm</b>, regardless of how actively they may sleep. Baby sleeping bags are more <b>safer</b> and comfortable alternative than traditional bedding.babies during this stage grows quicker. Our design allow a longer using period. That ensures a great investment for mom.a baby sleeping bag keeps your baby comfortable and warm all night long, <b>So Have a good night's sleep! </b><br>