This item can be used all year round, making it suitable for both air conditioning in the summer and cold protection in the winter. Material: 100% Cotton Size: S (for 0-1 year olds) Length: 54cm Width: 30cm *Please allow for slight variations due to manual measurements. I have checked the item visually, but there may be some overlooked stains. Please understand. Please understand that this is a pre-owned item that has been stored at home, and we kindly ask for your purchase. Please be sure to read the profile section before purchasing. #sleeper