First, draft a basic sleeve pattern and outline the overlap and underlap of the tulip sleeve.
Trace the overlap and underlap out, and add seam allowance. Cut the fabric out. Cut the lining out if the sleeve is to be lined: 4 panels of fabric and 4 panels of lining.
With the right sides together, pin the overlap and underlap underarm seams together and machine stitch. Repeat the same for the lining. Press the seam open.
With the right sides together, pin the fabric and the lining together and machine stitch.
Trim the seam allowance and understitch.
Turn the sleeve to the right side, and with the wrong side facing you, tack the seams together and press.
Match the marks on the overlap and underlap, cross A over B, and pin and tack in place. Baste the sleeve head and finish off by setting the sleeve into the armhole of the garment.
The overlap can be placed at the back or the front of the garment.