Inofia Hybrid Mattress ... Hybrid Mattress Design: The multi-layered design of this inofia mattress provides a soft, fluffy surface and its solid-quality cotton blanket and non-slip knitted polyester fabric cover ensure the skin-friendly support of the whole mattress. Caution: It is recommended to be cautious and keep enough distance while unboxing the mattress from the plastic as it may smack you.