I’ve untucked for as long as I can remember. As a child I never understood the point of bedmaking, because every time I got in a bed that was made I had to spend a few minutes messing it up to perfection. My feet need to breathe.
Even if I started out in a made bed, I would dream about holding the covers by my face and kicking with my feet to get them untucked from the bottom, and then I would wake up, and you’ll never guess what had happened.
If I fall asleep with socks on I remove them in my sleep too.
So when I first encountered the duvet (and what I was told was the European style of bed making, which amounts to folding up the duvet at the foot of the bed) I was delighted. Now I use only a duvet, with a cover made of two bedsheets sewn together, and it is still MUCH too hot for me so I spend half the night half out in the open anyway.