What should I do with the old quilts and quilts given by my mother-in-law

[:em27:] When I got married, my mother-in-law made two mattresses, and I used them without thinking. Now that I'm pregnant, my mother-in-law said that she would take down the old mattress that she slept with her father-in-law for 30 years to make a quilt and mattress for her baby (she changed her bed of 1.5 meters to 1.8 meters, and the old mattress was too small to use). I'm sweating all over ... the baby's delicate skin has such low resistance, so you use 30-year-old cotton cloth to make things for the baby? ! Your house is full of cockroaches, don't you know ... I refused on the spot, and later my mother bought new cotton and new cloth for the baby. Now that I think about it, I don't even know what cotton the mattress was made of when I got married (the fabric is new). Alas, adults can use it anyway. I won't tamper with the baby's things.