These are super loose and comfortable. I easily could have gone down a size, if not two, but since they’re pajamas, I’m ok with that. I ordered XL, my measurements are 36D, 31, 38. I ordered up a couple of sizes, so if you want it loose, order up. Otherwise, your typical size will fit great. Very soft and comfortable. Extremely lightweight. I have a broken thermostat in my body, especially at night. I go to bed cold but if I dress for how I feel at bedtime, I’m going to be a sweaty mess by morning. These really help me make it through the night comfortably. 10 different designs to choose from, ranging from small to XL, and a current promotion running for 8% off of 2. Remember these fit pretty loose, even purchasing your regular size.