Blankets

If you put a blanket at the foot of the bed in case it gets colder in the night, fold it in an accordian-fold so you can just reach down, grab hold and it will unfold as you lie down.  Especially good for kids' beds.

Icy Water

If you like to have a glass of water at your bedside but don't like it after it gets room temperature, fill an insulated travel mug, like you use for coffee in the car, with 3/4 ice cubes, then water.  The ice will melt through the night and the water will still be cold in the morning.