Got called a bad mom by MIL

So my baby is 3 months old & my MIL is constantly telling me I'm a bad mom because I don't put a pillow and blanket in his crib and also because I don't have a bumper in his crib but I've read so many things about babies suffocating when people use those things so I refuse to. All I have is his sheet in his crib & he sleeps in his pjs and a halo sleep sack so he doesn't need a blanket. Do you think I'm a bad mom because I won't let him have those things in his crib? I know it's cuter to have bumpers and stuff but I care more about the safety of my baby. Help I feel so down