YappyKids is the Latvian brand! It is a bilateral mattress. On the one hand 6 cm of thickness coconut fiber, and on the other side of about 2 cm of latex are applied to the internal block. YappyKids recommends that the child up to 1.5 years slept on the coconut party, and after an okrepleniye of vertebral muscles it is possible to overturn a mattress on softer party with latex. Why to choose latex? Thermoregulation. In the summer latex perfectly cools a body of the kid, and keeps heat in the winter. Durability. Latex is a material with the minimum koefitsent of wear and deformation. Latex is resistant to appearance of a dust tick and other harmful bacteria. This material is extremely elastic and adapts to a bend of a body of the kid. Also YappyLatex a mattress is made without use of glue. Layers of a coco and latex are sewed together, the turned-out filler is wrapped in fabric from cotton (90%) and wool (10%) that hairs of coconut fiber did not prevent to sleep to the kid. And the mattress cover is made of 100% of cotton which can be erased in the washing machine at a temperature of 40 degrees. Cotton also has OEKO TEX certification.