hvac · 120W typical
Running a heated mattress pad costs about $0.12/month.
That's the typical heated mattress pad at 120W, run 0.5 hours a day at the US-average rate of 16.5¢/kWh. Change any of those and the number moves — use the calculator below to see yours.
Estimated cost
A heated mattress pad draws full power only while the thermostat/compressor is running — about 0.2 effective hours at 120W across your 0.5-hour window.
How you use it
Cost shifts with how long it's on.
The same heated mattress pad can cost very different amounts depending on usage patterns. Three common scenarios, at the US-average rate.
warm-up before bed
$0.12
per month
pre-heat for 30 min then shut off
all night low
$1.90
per month
runs on low throughout the night
dual-zone couple
$1.90
per month
each side set independently
Where you live
$0.22 spread between the cheapest and priciest states.
Same appliance, same hours of use, different zip code — the monthly cost varies this much.
| State | Rate | Monthly | Yearly |
|---|---|---|---|
| Hawaii | 41.2¢ | $0.30 | $3.61 |
| California | 31.4¢ | $0.23 | $2.75 |
| Massachusetts | 30.8¢ | $0.22 | $2.70 |
| Connecticut | 28.7¢ | $0.21 | $2.51 |
| Rhode Island | 27.9¢ | $0.20 | $2.44 |
| New Hampshire | 24.6¢ | $0.18 | $2.15 |
| Alaska | 24.3¢ | $0.17 | $2.13 |
| New York | 22.3¢ | $0.16 | $1.95 |
| Maine | 22.1¢ | $0.16 | $1.94 |
| Vermont | 21.5¢ | $0.15 | $1.88 |
| Michigan | 19.3¢ | $0.14 | $1.69 |
| New Jersey | 19.1¢ | $0.14 | $1.67 |
| Maryland | 18.4¢ | $0.13 | $1.61 |
| Pennsylvania | 18.1¢ | $0.13 | $1.59 |
| District of Columbia | 17.8¢ | $0.13 | $1.56 |
| Wisconsin | 17.4¢ | $0.13 | $1.52 |
| Delaware | 17.2¢ | $0.12 | $1.51 |
| Illinois | 16.9¢ | $0.12 | $1.48 |
| Ohio | 16.6¢ | $0.12 | $1.45 |
| Nevada | 16.3¢ | $0.12 | $1.43 |
| Indiana | 15.8¢ | $0.11 | $1.38 |
| Virginia | 15.7¢ | $0.11 | $1.38 |
| Minnesota | 15.6¢ | $0.11 | $1.37 |
| Colorado | 15.4¢ | $0.11 | $1.35 |
| Alabama | 15.2¢ | $0.11 | $1.33 |
| West Virginia | 15.2¢ | $0.11 | $1.33 |
| Florida | 15.1¢ | $0.11 | $1.32 |
| New Mexico | 14.8¢ | $0.11 | $1.30 |
| Texas | 14.8¢ | $0.11 | $1.30 |
| Arizona | 14.7¢ | $0.11 | $1.29 |
| South Carolina | 14.7¢ | $0.11 | $1.29 |
| Kansas | 14.6¢ | $0.11 | $1.28 |
| Georgia | 14.2¢ | $0.10 | $1.24 |
| Iowa | 14.1¢ | $0.10 | $1.24 |
| North Carolina | 13.9¢ | $0.10 | $1.22 |
| Missouri | 13.6¢ | $0.10 | $1.19 |
| Oregon | 13.4¢ | $0.10 | $1.17 |
| Tennessee | 13.3¢ | $0.10 | $1.17 |
| Kentucky | 13.2¢ | $0.10 | $1.16 |
| Mississippi | 13.1¢ | $0.09 | $1.15 |
| Oklahoma | 13.1¢ | $0.09 | $1.15 |
| South Dakota | 12.7¢ | $0.09 | $1.11 |
| Montana | 12.4¢ | $0.09 | $1.09 |
| Nebraska | 12.2¢ | $0.09 | $1.07 |
| Arkansas | 12.1¢ | $0.09 | $1.06 |
| Washington | 12.1¢ | $0.09 | $1.06 |
| Louisiana | 11.9¢ | $0.09 | $1.04 |
| Wyoming | 11.6¢ | $0.08 | $1.02 |
| North Dakota | 11.5¢ | $0.08 | $1.01 |
| Utah | 11.4¢ | $0.08 | $1.00 |
| Idaho | 11.3¢ | $0.08 | $0.99 |
Efficient vs. inefficient
A $1.69/year difference across the wattage range.
Swapping a high-draw model for an efficient one pays for itself. Here's what that looks like annually at typical usage.
Most efficient
60W
$0.06 per month
$0.72 per year
Typical
120W
$0.12 per month
$1.45 per year
High draw
200W
$0.20 per month
$2.41 per year
When it hits hardest
winter peak
Oct-Apr dominant.
Ways to cut the cost
- 1
Use pre-heat + off pattern — 30 min before bed, then shut off
1/10th the nightly kWh of all-night heating
- 2
Lower whole-house heat 5-7°F overnight
Saves 10-15% on winter bill
- 3
Choose dual-control so each partner runs only their side
Cuts pad wattage in half when one partner opts out
Real-world wattages
Pulled from actual spec sheets.
| Brand | Model | Watts |
|---|---|---|
| Sunbeam | Quilted Heated Mattress Pad | 140W |
| SoftHeat | Smart Heated Mattress Pad | 100W |
| Biddeford | Comfort Knit Heated Mattress Pad | 130W |
Picks that actually move the needle
Three products worth comparing if you're thinking about upgrading or supplementing what you have.
Some links below are affiliate links. If you buy, we may earn a small commission — it never changes the price you pay, and we only recommend picks we would stand behind.
See also
Related appliances
Sources: www.energy.gov · www.energystar.gov
Last updated: 2026-04-13