My Creativity is Frozen

Today I'm getting my furnace replaced. More gargantuan household expenses, but definitely worth it.
But this means for pretty much the entire day, I have no heat running through the house, and I'm freezing.

Photo by: Liz Noffsinger/FreeDigitalPhotos.net

I'm sitting here distracted and shivering, and it's only 7 degrees Celsius. My goosebumps are the size of gumdrops. All I can think about is the blanket on the couch....but I've already spent an hour and a half under it--not getting anything done. I'm hoping once we replace the ole' Flamemaster my days of sofa-burrowing will come to an end. I just can't function when I'm cold, and it's getting worse as I get older.

Of course, when I'm too warm, it makes me sleepy. I've been crashing just as much under that cozy sleeping bag behind me as I have been in my own bed. I can't win. Whole lot of getting nothing done.

There's got to be a happy medium. Surely, I'm not the only writer distracted by the temperature of their own atmosphere? I often hear the question asked, what do you listen to when writing? I honestly don't care. I just want to be toasty.

What about you? What comfort level do you need to work? I could use a few pointers here.