Waiting for the heat to turn on.

So we all know the old wives tails about pregnant women. During the summer they're miserably hot, almost comically trying ways to keep cool; like a fat man in the Mojave. So what they say about the winter is adversely true. Always hot with an internal heater unit built in and always on high. So why is it that my wife, who is by now eating for two, dressing for two, and sleeping for two, not hot enough for two? We've had our first cold snap of the season and my wife is huddled under any blanket she can find. At night I'm dying on top of, not even under, flannel sheets and she's buried under whatever she can grab. Go figure.