You cannot (or better you should not) use anything to cover your baby while s/he is sleeping before one year old, because of the security reasons. Product safety.
Handmade crocheted Christening/Baptism/Baby Shower/Newborn Gift baby blanket. I only use quality yarn which feels very soft to the touch. Machine washable.
Mel P Designs: Vintage Baby Blanket-link to free pattern. Crochet Baby Blanket #crochetcardigan #babygirlcardigan #handmadebabyoutfits #babygirlclothing.