A traditional pair of pajamas with either long or short sleeves and long, short or short - short bottoms. The top and short - short bottoms can be piped (optional). All seam allowances are 1cm unless otherwise stated. Skill level - intermediate. Fabric Requirements and Notions For fabric requirements please see the last image, left. Below is a list of notions needed to complete the pattern. Matching thread. Buttons (top) - 4 x 10MM. Lightweight Interfacing (top) - 0.65M. Lightweight Interfacing (bottoms) - 0.5M. Elasic (bottoms) - 30 - 45CM x 2.5CM. Optional Piping (top) - 3 - 3.5M x 00 size. Optional Piping (short shorts) - 1.6 - 2M x 00 size. When consulting the 'fabric requirements' chart you need to add your top choice and bottom choice together to get the total amount of fabric you need for the set. Important - This is a UK pattern, do not go by your usual size, take your measurements and choose your size based on that. UK sizes fit at least a full size smaller than North American sizes.