Should I even consider a career sabbatical right now?

I'm 44 and am well-compensated by my employer of 10 years. I've been in the IT field for over 20 years and am pretty much burned out from on-call demands and the general "do more with less" attitude that seems to be prevalent in the industry these days. I would like to take possibly up to a year off to work on getting my health back on track (weight issues), travel and do a bit of downsizing. Financially, I have about $100k available without touching retirement accounts. No mortgage or loans - just monthly expenses of about $1,500. No wife or children. My girlfriend is completely cool with the idea of me taking a sabbatical. Given the current economic climate and, let's face it, my age, is this idea completely a non-starter?