MAKE SURE TO CHOOSE THE RIGHT SIZE OF THE PILLOW.
Head Care™ pillow is available in three sizes, adjusted to the particular stage of your child’s development (since they are born until the day they decide to stop using it):
S for children under 5 kg, head circumference under 39 cm (0-about3 months)
M for children from 5 to 8 kg, head circumference 39-44 cm (2-about6 months old)
L for children above8 kg, head circumference above44 cm (5 months and more)