Where to find thermal maternity tops?

[Flingmoo]

I am one of these people who is ALWAYS cold and my typical layering at work is:

Basic cami vest
Long sleeve merino base layer or anything made from some % of wool
Thick jumper on top

I can easily get my usual stretchy cami vests in a size up from Primark but I can't find any long sleeve tops that are wool. I find even just 5% wool is usually warmer than pure cotton.

Any ideas?!

I'm wearing the M&S thermal tops that I bought a few years ago when I was bigger so they've got plenty of room in. Even so, I find that the arms fit me (aren't baggy) but I have plenty of room in belly/boob area. Worth a try on?

www.marksandspencer.com/l/lingerie/thermals/thermal-tops-n-bzo4x?&mcptredirect