Everytime I hear women who dress up in things I wouldn't even call clothes, use the explanation "I wear this for myself", it makes me cringe.
This is what I wear for myself, when I want to be comfortable, happy in my own body and feel good.
My Elvis-onesie. It is fleece, so warm and comfy, bought from Primarks salerack for £3. No need for feet-killing high heels, a fuckton of make up, or tits that have been tightly squashed under my chin.
So there.