Sleeping With an Electric Blanket: Is It Safe All Night?

When the temperature drops, few things feel better than sliding into a warm bed. That’s why so many people turn to electric blankets in the winter. But is sleeping with an electric blanket actually safe, or should you switch it off before you doze off?

The answer depends on the age and condition of your blanket, how you use it, and who’s using it. Here’s what safety experts and sleep researchers say, plus a simple routine for getting the warmth you want with less risk.

Is It Safe to Sleep With an Electric Blanket?

Safety groups and sleep experts don’t fully agree, so it helps to know both sides.

The Sleep Foundation notes that modern electric blankets are far safer than older models, with automatic shut-off features based on time or heat levels and low-voltage options. It says most modern blankets are safe to use while you’re awake, to warm your bed before you get in, and throughout the night, though some aren’t designed for all-night use and will shut off automatically for safety. Even so, it lists “safety concerns” first among the downsides: there is still a risk of fire or burns.

The Electrical Safety Foundation International (ESFI) is more cautious. Its fire-prevention guidance says heating appliances should never be left unattended or used while sleeping.

So what should you do? The most practical middle ground is to use your blanket to warm the bed, then rely on a timer or auto shut-off, or switch it to low or off once you’re settled. If you do keep it on overnight, follow your blanket’s instructions exactly and choose a model designed for that use.

Why Old Blankets Are the Biggest Risk

According to ESFI, heating pads and electric blankets cause around 500 fires each year, and almost all of these fires involve electric blankets that are more than ten years old. That makes the age and condition of your blanket one of the most important safety factors.

Before you use your blanket each season, check it carefully. ESFI recommends looking for:

• Dark, charred, or frayed spots on the blanket
• Electrical cords that are cracked or frayed
• Any sign of wear on an old blanket or heating pad

If you find any of these, replace the blanket. The Sleep Foundation also recommends buying electric blankets new rather than secondhand, inspecting them before use, and replacing them when needed.

Electric Blanket Safety Rules to Follow Every Night

These tips come straight from ESFI and the Sleep Foundation. They’re simple, but they address the most common causes of overheating.

1. Never fold or bunch it while it’s on. ESFI warns that folded or tucked-in electric blankets could overheat and cause a fire. The Sleep Foundation adds that electric blankets should lie flat over the body with no creasing or folding.
2. Don’t pile things on top. When covered by anything, including other blankets or pets, an electric blanket may overheat, according to ESFI.
3. Don’t lie on top of an electric blanket. The Sleep Foundation says owners shouldn’t lie on top of their blanket, especially on foam mattresses, which trap heat and can be damaged.
4. Skip extension cords and power strips. ESFI says to plug electric blankets directly into the wall, since cords and strips could overheat and cause a fire.
5. Don’t double up. Heating pads and electric blankets aren’t meant to be used interchangeably or at the same time.
6. Buy a certified product. ESFI recommends buying from reputable retailers and choosing devices approved by a Nationally Recognized Testing Laboratory.
7. Check your bed type. The Sleep Foundation notes that electric blankets are unsuitable for waterbeds and some adjustable beds.

If you’re also considering a heavy blanket for comfort, remember that piling extra layers on top of a heated blanket works against rule No. 2. Our guide to weighted blanket benefits covers that option separately.

A Safer Way to Use an Electric Blanket for Sleep

Here’s a simple routine that gives you a warm bed without running heat all night:

1. Preheat. Turn the blanket on a little while before bed so the sheets are warm when you get in.
2. Step down. Once you’re in bed, switch to a low setting or turn it off.
3. Use the timer. If your blanket has an automatic shut-off, set it so the heat ends after you’ve fallen asleep.
4. Keep the room cool. The Sleep Foundation says the best bedroom temperature for sleep is about 65 degrees Fahrenheit, with most doctors recommending 65 to 68 degrees. A warm bed in a cool room is a good combination.
5. Warm your feet another way. A pair of loose, breathable socks can keep cold feet comfortable without extra heat. See our guide to sleeping with socks on.

Your body naturally cools down as you fall asleep, so too much heat can actually work against you. If you wake up sweaty, read our tips on how to stop overheating at night and our deep dive on the best temperature for sleep.

Who Should Avoid Sleeping With an Electric Blanket

For some people, the risks of overnight heat are higher. Talk with your doctor before using an electric blanket if any of these apply to you or someone you care for.

People with diabetes or nerve damage

The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) explains that diabetes can cause nerve damage that makes you lose feeling in your feet, and that if you have nerve damage, you may burn your feet and not know you did. NIDDK advises against putting a hot water bottle or heating pad on your feet and suggests wearing socks in bed if your feet get cold. The same caution makes sense for heated bedding: preheat the bed, then turn the blanket off before you get in.

Older adults

Older adults face a different winter risk: getting too cold. The National Institute on Aging (NIA) says changes that come with aging can make it harder to notice when your body is becoming too cold, and that even mildly cool homes from 60 to 65 degrees Fahrenheit can lead to hypothermia in older adults. NIA recommends setting your heat to at least 68 degrees, using extra covers when you sleep, and wearing long underwear under your pajamas. If an older adult uses an electric blanket, make sure they can feel the heat and work the controls easily, and choose a model with automatic shut-off. Our guide to sleep and aging has more on how sleep changes over time.

Babies and young children

Babies should never sleep with heated bedding. The NIH’s Safe to Sleep campaign says babies should sleep on a firm, flat surface covered only with a fitted sheet, that soft surfaces such as quilts and thick blankets are not safe for babies to sleep on, and that overheated babies are at higher risk for SIDS. For young children, the Sleep Foundation notes that electric blankets aren’t child-safe, since curious fingers can damage them.

Anyone who can’t respond to heat

If someone can’t feel when they’re getting too warm or can’t easily turn the blanket down, such as a person who is very sleepy from medication or has limited mobility, heated bedding left on overnight is riskier. Warm the bed first, then turn it off.

Electric Blanket Care and Storage

Taking care of your blanket helps it last and stay safe:

• Wash it the right way. The Sleep Foundation says most electric blankets are washable because their internal wiring is designed to handle moisture, and owners usually remove the plug and control first. Always follow the care label.
• Inspect it every season. Look for scorch marks, fraying, and cord damage before the first cold night.
• Replace older blankets. Since most electric blanket fires involve blankets over 10 years old, an aging blanket is worth upgrading.

For the rest of your bed, our guides to the best sheets and bedding for sleep and how often to wash your sheets can help.

The Bottom Line

Sleeping with an electric blanket can be safe for many adults if the blanket is newer, certified, in good condition, and used as directed. Most fires involve blankets more than 10 years old, so inspect yours and replace it when it shows wear. For the lowest risk, preheat your bed, then switch the blanket to low or off, or let the auto shut-off do it for you. Babies, young children, and anyone who can’t feel or adjust the heat should skip heated bedding overnight.

FAQ: Sleeping With an Electric Blanket

Is it OK to leave an electric blanket on all night?

It depends on your blanket. The Sleep Foundation says many modern blankets are designed for overnight use, while some shut off automatically. ESFI advises that heating appliances should not be used while sleeping. The safest option is to preheat the bed and use a timer or auto shut-off.

How old is too old for an electric blanket?

ESFI reports that almost all electric blanket and heating pad fires involve electric blankets more than 10 years old. If yours is that old, or shows charred spots or a damaged cord, replace it.

Can I put a comforter over my electric blanket?

ESFI warns against letting anything, including other blankets or pets, rest on top of an electric blanket while it’s on, because it may overheat. Turn the blanket off before adding layers.

Are electric blankets safe for kids?

Electric blankets aren’t recommended for babies or young children. Safe-sleep guidance says babies should sleep with only a fitted sheet, and the Sleep Foundation notes that electric blankets aren’t child-safe.