I’m wearing size XS in these cheetah pajamas! They fit perfectly but last week in NYC I was swollen on my first day/night and they were snug. I wished I had a size small. In show me your mumu pajamas that are more cotton— you have to size down bc they run huge but in these I would recommend TTS or size up if you like baggy — in the silky material! I had to unbutton sleeves on these to make them feel more comfy. I linked others that are short sleeve bc those may be better. I will say- once my swelling went away in nyc these did feel way more comfy!!