This document provides instructions for creating elasticated pyjama shorts and lounge pants with an elastic waistband. It includes diagrams and steps for drafting the patterns and constructing the garments. For the pyjama shorts, the steps describe how to draft a J-shaped curve for the crotch and leg openings. For the lounge pants, it outlines drafting a pattern with a waistband. The final sections explain techniques for adding an elastic or drawstring casing and hemming the bottom openings.