Enter your blanket's wattage and nightly use time to see the real cost — often far cheaper than raising the whole-house thermostat.
Most electric blankets cycle on and off to maintain a set temperature rather than running at full wattage continuously, so real-world cost is often somewhat lower than this straightforward estimate.
Warming just the bed with an electric blanket costs a fraction of what it takes to raise a whole home's temperature overnight, since you're heating a small enclosed space directly against the body instead of a large volume of air. Compare this to the cost difference of a degree or two on your thermostat using the heating cost calculator for a fuller winter energy picture.
Most modern electric blankets have auto-shutoff and low-voltage designs rated for overnight use, but always check your specific product's safety guidance and avoid older or damaged units.
Lowering a thermostat by even a few degrees overnight while using an electric blanket for warmth can meaningfully cut winter heating costs, since whole-home heating uses far more energy than warming a small area directly.