1.Cotton 2.Memory Foam 3.This neck pillow wraps around your child's neck and supports their head when they fall asleep. The thickened and widened sides provide full support for the chin, while the back of the travel pillow is thinned to prevent the head from falling forward and causing discomfort or potential strains on the neck. 4.T5he removable neck support pillow case is made of a nice velvet for gentle, natural, and easy care, which features wrinkle, shrink, and fade resistance. The durable velvet fabric is not prone to pilling after frequent washing. The surface fluff forms an air layer, which is very warm and can keep your child away from the cold in autumn and winter, and you will fall in love with it. 5.The cute eye mask is thick enough to block light and create a good sleeping environment, so you can wear them every night when you sleep or take a nap while traveling, greatly improve your sleep quality. These cute animal sleeping masks are delicately designed in the same style as the sleep pillow, applies the head without tightness, is the perfect sleeping pillow companion.