Soft, warm PJs. All that really changes during the year is that in warmer weather I wear lighter or short sleeved PJs or, when it is quite warm, a light short nightgown.

I prefer a nightie to PJs. Long-sleeved in the winter, short-sleeved in summer. I have a couple of long-sleeved full-coverage things that look like the kind of thing you see old crones wearing in the movies. I should get rid of them really, because since going through the menopause, I don't feel the cold much any more.

The only time I wear PJs is, curiously, when it's really hot. I was given a tip years ago on sleeping in very hot weather. (In the UK we don't as a rule have air-con in our homes.) If you sleep on top of the covers wearing light, but loose long-sleeved PJs, that'll keep you cooler than sleeping under a sheet wearing less (or nothing). It works for me, I can sleep when it's really hot and if I wake in the night, because my arms and legs are covered, I'm not freezing cold. There's apparently some science behind it.

Nothing, ever. I can't stand to wear anything when I sleep. Except when I sleep on the train on the way home (apparently it upsets other commuters).

Tshirt and cotton sweats/pajama bottoms. Sometimes naked.

A ratty old t-shirt. Usually a cotton one from a race.

Briefs. In the winter I add a t-shirt. I'm usually too hot, especially my feet.

nothing

Matching pj's. It's the only time in my life when I am fashionable. No, I am not joking. My socks rarely match, but my sleepwear always does. I have a thing for pajamas.

Old t shirt & underwear. Gotta keep my legs free for squirming

long sleep pj sets in winter/spring, short sleeve pj sets the rest of the time

PJs! Rarely matching. Even when I have matching sets, I break 'em up. But that could be due to not owning any sets I really love at the moment. These days it's grey stripped PJ pants and a variety of tank tops. I was wearing them all winter thanks to postpartum hormones that gave me the night sweats (I'd wake up in a wet, cold shirt if I wore anything with a neck or sleeves). That finally seems to be over, maybe I can think about real shirts again.

I keep the house cold at night - 60ish. So in winter, flannel PJs, usually plaid. I also change into these as soon as I'm in for the night. In summer, short sleeve PJ sets. I've never understood nighties - I'd wake up with them bunched around my armpits (mobile sleeper).

For most of my adult-ish life (i.e. college years and beyond) I slept commando. A few years ago, I was laid-up in bed nursing a particularly demonic cold/flu thing, and started wearing a t-shirt in bed for a bit of coziness during the day. I've been wearing only a t-shirt to bed ever since. I can't stand anything more, though. It just feels weird and confining.

It depends. Is anybody else there?

Sometimes a tee-shirt. Sometimes a satin sleep shirt. Sometimes nothing. Sometimes panties, sometimes not. When I was really sick recently, I wore fleece leggings and a long sleeved top - very unlike me, as I tend to get warm while sleeping. I used to wear lacy things when I was married, but honestly they were rather uncomfortable and not great for sleeping in. I guess it all depends on my mood at the moment!

I wear t-shirts during the day, so typically I will take off my bra and wear that t-shirt, over my underwear.