We have the Sleep Number bed. We've had it for 8 years now. We love it. You never have to worry about buying a mattress that is too firm or too soft, or make a compromise if your spouse likes a different firmness than you, since you can dial it in to your personal liking on your side, and your spouse on their side.
Quoted from arcademojo:Shit, probably cost more then my car.
Most people spend more time in their bed than their car.