Wife usully sleeps with PJ, sometimes topless when it is hot.
But if we go on a weekend with her sister and her family, she always sleeps naked cause they also do so.
Then she even gets up and prepares and has breakfast in the nude.
Never could figure out why :)

often sleep in the buff - more comfy as nothing bunches up- and it's much cooler in summer months..

my only worry, is if there's a fire alarm!

Ever since she started having HOT flashes in her late 40's. She would start out wearing a T-shirt or nighty, but would soon end up naked. Very common now to see her sleeping blankets pushed aside and completely naked.

Wives who sleep naked
 

In the middle 1980's I had a relationship with a 60yo lady I was 35yo. She always slept naked and never bothered to get dressed when she got out of bed. She loved being naked and had stopped wearing underwear when she was a teenager, and never shaved.

sleeping naked.
 

Naked, every night. Even with friends or family over, we sleep nude and never close the door. Anyone who chooses to peek, there we are!
You would have to enter our room, however, to see us since the bed is actually around a corner once you enter. But, we are naked and the door is always open! 😉

Still just my fiancee, but most of the time nude. If it is chilly or we are not together, she will wear PJs. I'd say 90% of the time naked, no matter where we are.

not only my wife,
 

but all family members do so.
When I meet my wife first 44 years ago, I didn‘t even have a pyjama and she found it silly to wear different night wear. This was the beginning of our nude night life. In summertime we are nude, when staying at home and in colder seasons we take off our clothes bevor take a shower and stay naked until the next morning after breakfast, bevor leaving the house. This is kind of commonsens in our family, but everybody may held it, how she or her likes.

In college, I had gone to a friend's house for part of Spring Break, and his entire family slept nude, too. It was him, his two sisters, his mom, and his dad. We didn't really see each other, but I saw/noticed enough to learn the first night that the entire family slept nude. I asked him about it, and he said it had been that way his entire life. He said it wasn't until his first night in college dorms that he learned that not everyone slept nude. He thought everyone slept nude, period.

My wife sleeps nude or partially nude probably 60% of the time. Time of year plays a part. We heat our house with the same wood burning stove my great-grandpa put in when he added on in the 1920's and sometimes our room gets a little cold when it is below freezing and snowy in the winter. She wears warm PJ's then. When it is warmer, she is almost always topless and hit or miss on bottomless.

All of them!
 

Every woman I've been in a relationship with throughout my entire adult life (I'm 60) has slept naked the entire time. The only exceptions have been hospital spells - which in the case of Amelia was a minor issue because when the ambulance crew wanted to transport her, it became apparent that she actually didn't have anything you'd call nightwear!!