Sleep Science WACOAL Wacoal Pajama Set (Top and Bottom) Retail Price: 20,900 yen (tax included) Size: M Material: Polyester/90%, Nylon/10% Chest: 88-96cm Height: 165-175cm Actual Measurements: Chest: 110cm, Length: 72.5cm Side seam (pants): 101cm, Waist: 75.0cm YGX621 Made in China Sleep Science... From the moment you fall asleep at night until you wake up feeling refreshed in the morning, what exactly is needed to truly "sleep comfortably"? "Sleep Science" is the result of Wacoal's long-term research into this question, a pajama that is particular about comfortable sleep. This is a pajama set (top and bottom) from Wacoal Sleep Science. I washed and wore it once. Thank you!