Curl up in pure comfort when wearing plus size loungewear from Old Navy. Now you can come home from work and change into comfy loungewear and revitalize from your stressful day. Our sizes in women's loungewear extend to 4X for a flattering and comfortable fit. Lounge pants in plus sizes are perfect for relaxing at home, getting a good night's sleep or even running a quick errand. You'll want to complete your wardrobe with plus size loungewear from Old Navy featuring tops, pants, tanks and hoodies.