Is it normal to sleep totally naked

It's not healthy or unhealthy to my knowledge

i sleep nude and wife does to

It's normal. I sleep nude most of the time as well. Just keep the sheets clean, stay warm, and you'll be fine.

It's normal I sleep nude most of the time I feel free from tight bra and panty

Depends how often you change your sheets. If you sleep naked your sheets are basically your underwear do you wear the same underwear for a week straight? Kinda gross.

It's fine i guess.

You just tend to be colder and sweat more (I know, weird). So maybe you are more likely to get sick. But if your room is warm enough, who cares.

All it means is that your body will stay cooler while you sleep.

Absolutely

it's fine