Someone asked about the PJs upthread.

They were soft and comfy. The FA later asked me what I thought about them -- she was worried they would be scratchy. I assured her that they were not.

I was not too hot, but tend to run cold so YMMV.

Later, I wore the pajama top in the hotel exec lounge. It was freezing in there and I was in SE Asia without anything heavy or even long sleeved. The PJ top is just like the photos with the blue piping around the collar and "V" where the buttons are so it looked enough like a shirt that I was OK wearing it out in public.

I had the L/XL and they were nice and loose and comfy.

My standards aren't high (eg. I'm happy to buy clothes at Costco with my cheese) and I have no other J PJs with which to compare UA's PJs, but I was happy with them. They're lying in my laundry pile, I'll report back if they don't hold up well in the wash.