Occasions: sleepwear, bath robe, nightgown, home wear, nightwear and others.

Size
100/2T suggests for height 80cm-90cm/31.5"-35.4": Length 53cm/20.8", Bust 62cm/24.4", Sleeve 28cm/11".
110/3T suggests for height 90cm-100cm/35.4"-39.4": Length 55cm/21.6", Bust 64cm/25.2", Sleeve 30cm/11.8".
120/4T suggests for height 100cm-108cm/ 39.4"-42.5": Length 58cm/22.8", Bust 66cm/26", Sleeve 32cm/12.6".
130/5T suggests for height 108cm-115cm/ 42.5"-45.3": Length 61cm/24", Bust 68cm/26.8", Sleeve 34cm/13.4".
140/6T suggests for height 115cm-125cm/ 45.3"-49.2": Length 64cm/25.2", Bust 70cm/27.6", Sleeve 36cm/14.2".

Please compare the detail sizes with yours before buying, please allow 1-3 cm differs due to manual measurement.
The color of the actual items may slightly vary from the above images due to different computer screen, thanks for your understanding.