Nighties with sleeves. They *do* exist!
I had to mention this little gem from the ASOS sale because it's that great impossible-to-find thing; a nightie with sleeves. I much prefer nighties to pajamas (what can I say? My dress obsession extends to bedtime) but at this time of year, I'm chilly in a strappy little slip, and the only options with sleeves are cotton granny offerings or those awful oversize t-shirts with things like 'grumpy but gorgeous' written on them.
This is the perfect compromise. It's cute without being naff, has a warm jersey long-sleeved top, but a skirted bottom. All this, and it's only a fiver in the sale. You'll thank me during our freezing February!