Good to see some one enjoying that which should be encouraged....my own balking at wearing "jammies" started at a very young age...and thankfully i had understanding parents...They decided to leave me to do what i wanted to do at bedtime, saying to each other, that i will "grow" out of it....
They were wrong with those thoughts though...have been sleeping naked now for approximately 50 years....
When i got married -+ 30 years ago, my wife used to wrap herself up in so much clothing, saying she was "cold" all the time, that she looked like museum mummy....could not move FREELY about with all that covering her....

Time has passed and she has "discovered" the freedom of no bed clothes, though it was some years before she "joined" me....
I can not imagine why people would restrict themselves with clothing in bed....it just never seemed NATURAL for me to "cover" up....
Carry on enjoying the freedom you have and the positive's you have mentioned in you post...