Keeping the Hot side Hot and the Cool side Cool

A bed that follows the path set by the McDLT. Warming or cooling a mattress in zones (very important). [Link]

Enter ChiliPad, which, contrary to its name, actually does provide cooling or warming benefits while you snooze. Reportedly, the mattress topper uses water rather than air to generate temperature adjustments, and the company even compares it to a water-cooled computer -- talk about understanding your market, eh? If Chili is to be believed, this thing can be set to cool things down to 65°F or warm 'em up to 100°F, and yes, it does come in single- and dual-zone versions. So, for those who just can't seem to get the thermostat set correctly, you can pick one of these up now for around $479 to $999, depending on size.

I think Sarah would like this as she is almost always cold.