Carb Nite has some pretty decent info.
Also- I HIGHLY recommend "The Art and Science of Low Carbohydrate Living". It explains how to deal with most problems that you will encounter.
From Carb Nite:
"Carb Nite ends with a warm feeling all over. Your body’s disabled ability to convert carbohydrates into fat causes the overload of carbs to be burned off as heat—this in addition to a spike in overall metabolism caused by the sudden shot of carbs. Weathering the rise in body temperature smoothly transitions to a good night’s sleep."
"The boost in fat burning and jolt of carbs ignites metabolism on Carb Nite.
Accompanying the excess combustion, an elevated body temperature might be a bit of a surprise. Concern is unwarranted: because of the increase in metabolism, a lot of the food is wasted as heat. This can make things a little warmer than normal at bedtime. Maybe you’ll want to sleep with the covers off."