Simple Pyjama

pattern drafting;

measurements

Hip circumference
Ankle
length

pattern making; 
                            Fold the cloth in 4 layers and then you take the measurements.
  a-b, c-d           -      1/4 hip measurement + 5"
a-c,  b-d          -      pajama length + 3.5"
j-k                  -      ankle loose + 1" ( it is loose at the ankle so i have taken the measurment
                               6"+1"=7")                     
j-c                  -      folding 1"
a- e                -      waist belt ( double width of the belt ) width + 1/2''
e- j                 -      pajama original  length
b-g                 -      3/4"
f- h                -      crotch/3
the measurements are  including  the stitches.
I have not attached the waist belt separately so my elastic casing is including the pajama measurement which is shown as  marking  'a-e' , if you want to attach the belt separately then you have to take  the length measurement as original length + 1.5 inch ( that is e-c ) and the belt is double the width + 1".  Cut the fabric from bottom to crotch and crotch to g.
The sewing method is same as legging