Similar to insomnia (persistent problems falling and staying asleep) but sleeping difficulties only occur right before attending a convention usually because of either stress or excitement.
"Man you ok? You look exhausted"
"I was working on my cosplay till 2am last night and then I was struck with consomnia"
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.