My hobby is quilting, which involves sewing layers of fabric together to make a material that is padded and thicker. 
How did you learn to do that? I bet they are beautiful.
and then brings the needle back up. The process is repeated across the entire area where quilting is wanted. Rocking, straight or running stitches are commonly used with these stitches being purely functional or decorative. Quilting is done to create bed spreads, art quilt wall hangings, clothing, and a variety of textile products. Quilting can make a project thick, or with dense quilting, can raise one area so that another stands out.
The whole process of creating a quilt or quilted garment also involves other steps such as
Quilting
Quilting is the process of sewing two or more layers of fabric together to make a thicker padded material, usually to create a quilt or quilted garment. Typically, quilting is done with three layers: the top fabric or quilt top, batting or insulating material and backing material, but many different styles are adopted.
The process of quilting uses a needle and thread to join two or more layers of material to make a quilt. The quilter's hand or sewing machine passes the needle and thread through all layers