Warm and comfy and feminine loungewear..

[ABigBraclet]

Has anyone seen anything that looks really nice, is cosy and doesn't come across as slobby? Does it even exist?
I'm a pear shape (unsure if this is relevant or not but I thought I'd bung that fact in there).
I rarely buy BNWT, usually its 2nd hand eBay or the charity shop if I'm fortunate, so I have no clue where to start looking for loungewear.
All I know is, is that I'm cold..but I want something 'nicer' than my faded, worn too many times Nike bottoms.
(I have been getting by in fleecey hareem pants but I need something more now).

Any pointers in the right direction?

I have an oversized sweatshirt dress thing from Kin at John Lewis. Not supposed to be loungewear and I have worn it out but it works really well for me, it's cosy, comfortable but I wear it with leggings and celtic and co slippers and I'm very happy answering the door if needed.

I did have some wool (mix? can't remember) wide legged trousers from the white company, they were pull ons, again not loungewear as advertised but I used them as such. OH shrunk them though.

Could you wear leggings under something thin and wafty? That way you'd have warmth and the look you'd like? I need to up my game in this regard for sure though, I mainly own checked brushed cotton PJs.