A safety device for children, specifically a cover for use with a variety of surfaces that provides a barrier to protect a child from the heat and/or contamination of a surface. In some embodiments, the device can prevent a child from being burned or uncomfortable by the heat of a swing seat or car seat by minimizing thermal transfer between a child's skin and the swing seat for an adequate amount of time. In some embodiments, the cover can be used in a planar configuration as a changing pad or play mat.