Hi-this is a size Chart for Disney clothing for baby,children, and toddler..Please note when buying sleepwear-cotton is only flame retardent when it fits snugly!

Size                        Height  (inches)                       Weight (pounds)

6 months                22-27 in.                                  12-18 lbs.

9 months                27-28 in.                                  18-20 lbs.

12 months              28-29 in.                                  21-22 lbs.

18 months              29-33 in.                                  22-26 lbs.

24 months/2T         33-36 in.                                 26-29 lbs.

3T                          36-39 in                                    29-32 lbs.

4T/4-5                    39-45 in.                                   32-41 lbs.

6/6X                       45-48 in.                                  41-50 lbs.

7/8                          47-53 in.                                  50-68 lbs.