Easy To Sew Child And Adult Loungewear Fabric Sewing Patterns 1504 by Simplicity Patterns. Get cozy with the whole family in these Easy to Sew loungewear shirts in two lengths and pants. Button down collared shirts, have chest pocket and can be personalized with piping and embroidered initials. Note: If used as sleepwear, use Fabrics & Trims that meet the Flammability Standards set by the U.S. Government. Sizes - XS - L / XS - XL.