Wear a garment with a bodice that has some soft fullness. Tuck or shirr shoulder seams to shorten the seam. Skirts, dresses and blouses that button can easily have the buttons moved over slightly. Width can be removed by seaming out extra fullness at the side seams. Changes can be made in pants at side seams, inseams and the crotch seam as needed.
Nightgowns adjust to body changes better than pajamas.
Kenneth R. Bolen, Director of Cooperative Extension, University of Nebraska, Institute of Agriculture and Natural Resources.