These 3-season sleeping bags for babies and toddlers can be used almost throughout the year. They are ideal in the spring, cooler nights in the summer and in the autumn. If it is very hot in the summer, use only a bed, pajamas or a summer sleeping bag . In the Netherlands it is often only very hot during the summer. So you do not always have enough of a summer sleeping bag. With this sleeping bag your child will also warm through the colder nights and this can also be used from spring - autumn. Is it really cold in the nursery in the winter then choose a winter sleeping bag .