Bed Energy
Do you toss and turn in bed, do you have restless legs, do you have insomnia?  The fact is that many people do not sleep like a log, lying there all night unmoving.  They toss and turn, they roll, they shake, and that's just the ones who are asleep.  There's a lot of energy there.
I believe some places have installed pressure sensitive pads under rugs and mats where a lot of people walk.  The idea being that all that pounding is converted into electrical energy that can be used for other things.
Well, why not do it for beds.  Something that woul...