TreeHugger advocates turning down your thermostat, but if you like to read in bed that can be a problem. That's why every reader needs Andrea Ayala Closa's Sleeved Blanket. It's not like those silly Snuggie or Slanket things that let people take their blanket to the TV; this is for more literate types who leave their blankets where they belong.
Designboom points out that it has an opening for the index finger to allow readers to turn pages conveniently.
Now if they could only figure out how to build a toque into the pillowcase, we could turn off the heat completely. Available soon at Happiness in Bed