Not a taat but the other one got me thinking.
Ds 5 has had the same bedtime routine since he was a baby. Bath, brush teeth, story, cuddle and kiss. He gets put to bed properly.
The past year or so he has taken a real dislike to pyjamas. He has loads, cotton, character ones. But he prefers to sleep with nothing on or just boxers.
At a push I can get him to wear just pyjama bottoms.
I prefer to sleep naked myself but it somehow doesn't seem proper for a child. But if he's most comfortable?