Is It Safe to Sleep with an Electric Blanket on All Night
Leave an electric blanket on all night only if it is undamaged, lies flat and has auto shut-off and overheat protection. In the US that points to the Brookstone Cozy Heated Plush Throw.
Makers and a burn specialist split on whether it should run while you sleep: some say switch it off before you get in, others say use the lowest setting, so follow your own blanket's manual.
How Long Can You Sleep with an Electric Blanket on Low
Your blanket's auto shut-off sets the limit on low, and shut-off timers typically run from 2 to 12 hours. An electric blanket can stay on all night only if it has temperature control settings, automatic shut-off and overheat protection, and your manual allows overnight use. Without those, switch it off and unplug it before you get in.
The sources disagree on what to do once you're asleep. Derek E. Bell, burn director at the Kessler Burn Center, advises in the UL Solutions article to switch the blanket on about half an hour before bed and switch it off before you climb in. The Home & Comfort manual says to use the lowest temperature setting for prolonged use or while sleeping. The HEMA manual says to set L or 1 for sleeping or long use. Follow the manual for your own blanket.
Use is simple once that's settled. Lay the blanket flat with no folds or creases, and keep bedding and everything else off it while it's on. Falling asleep on a bunched-up patch is a common cause of burns. Turn it off and unplug it when you're done.
Check the blanket before you pick a branch. Worn areas, loose plugs, cracked wires and charred spots on either side mean it goes in the trash, not back on the bed. Don't repair it yourself.
If you're replacing it and want a blanket with 4 heat settings that cuts itself off after 4 hours, get the Brookstone Cozy Heated Plush Throw.
If you want to compare more options, the best electric blanket page is the place to start. If you are weighing one particular brand, the Westinghouse electric blanket page covers that one.
If you have a pacemaker, can't feel heat, or are shopping for a baby
Skip the electric blanket if the person in the bed can't feel overheating or can't work the controls. Skip it for an infant too. The HEMA manual adds children under 3 and very vulnerable people who can't react to overheating.
Pacemaker makers and charities differ. Boston Scientific lists electric blankets as safe for use with a pacemaker when they are in good working condition and used as intended, and gives no distance. The British Heart Foundation gives a recommended distance of 15cm (6ins) from the pacemaker. The HEMA manual says to consult a doctor before using it with a pacemaker or implant. Take the decision to your doctor or cardiologist and your device's maker.
Electric Blanket Deaths per Year
Recalls and warnings document overheating, melting, fires and burns from faulty or misused blankets. Check yours against them.
The Bedsure recall of March 2023 covered about 350,000 units after the controller could malfunction and pose fire and burn hazards. The firm reported 137 incidents of fire, burning, melting and overheating, plus 17 burn injuries. The units were sold on Amazon and BedsureHome.com from August to November 2022. If you bought a Bedsure blanket or pad then, check its model against the recall notice. The remedy is a full refund.
Skip Melinora electric heated blankets. The wire heating elements can overheat and melt through the polyester fabric, with 5 incidents recorded including 1 burn injury.
Misuse causes failures too. A 2004 recall followed 86 reports of overheating or charring, including 3 minor skin burns, when the controller was reset repeatedly or the blanket was folded or covered with additional blankets. Don't fold it in use, and don't pile covers on it.
Are Electric Blankets Safe for Elderly
An electric blanket is safe for an older adult only if none of the makers' warnings apply, and the earlier caution about feeling overheating and working the controls comes first.
People with diabetes are more vulnerable to burns. Electric blankets are not recommended for anyone paralyzed or unable to operate them safely, or for people with urinary incontinence. Sunbeam's manual lists an incapacitated or immobile person, a diabetic, and anyone insensitive to heat such as a person with poor blood circulation. Those are the makers' warnings. Whether they apply to you is your doctor's call.
Can Electric Blankets Cause Blood Clots
Ask your doctor about blood clots before you buy a heated blanket. Makers list poor blood circulation among the reasons not to use heated bedding, so a circulation condition is reason enough to ask first.
Can Electric Blankets Cause Cancer
The evidence does not show that electric blankets cause cancer. The radiation question is about extremely low frequency magnetic fields, and the major reviews fall short of calling them a cause.
The WHO says the childhood leukaemia evidence is not strong enough to be considered causal. IARC classed these fields as possibly carcinogenic in 2002, the same class as coffee and welding fumes. The WHO panel found the evidence for other cancers much weaker. For breast cancer it suggests these fields do not cause it.
The National Cancer Institute reports no consistent evidence from household appliance use for childhood leukemia. One electric blanket study found no statistically significant association with breast cancer. Appliance fields drop sharply at about 1 foot, and brief use adds little to total exposure.
A Danish study of utility workers found no compelling evidence of higher leukaemia, breast cancer or brain cancer. Those were workplace exposures. Choose on burn and fire safety instead.
Questions
Can an electric blanket stay on all night?
An electric blanket can stay on all night only if it is undamaged, lies flat, and has temperature control settings, automatic shut-off and overheat protection. Your manual must also allow overnight use. Sources disagree here: a burn specialist advises switching the blanket off before you get in, while the Home & Comfort and HEMA manuals say to use the lowest setting for sleeping. Follow your own blanket's manual.
How do I use an electric blanket safely?
Lay the blanket flat with no folds or creases, and keep bedding and everything else off it while it is on. Falling asleep on a bunched-up patch is a common cause of burns. Turn it off and unplug it when you are done. Before each use, check for worn areas, loose plugs, cracked wires and charred spots. If you find any, throw the blanket away and do not repair it yourself.
Are electric blankets safe with a pacemaker?
It depends on the source, so take the decision to your doctor or cardiologist and your device's maker. Boston Scientific lists electric blankets as safe for use with a pacemaker when they are in good working condition and used as intended, and gives no distance. The British Heart Foundation gives a recommended distance of 15cm (6ins) from the pacemaker. The HEMA manual says to consult a doctor first.
Are electric blankets safe in terms of radiation and cancer?
The evidence does not show that electric blankets cause cancer. The radiation question concerns extremely low frequency magnetic fields. The WHO says the childhood leukaemia evidence is not strong enough to be considered causal, and IARC classed these fields as possibly carcinogenic in 2002. The National Cancer Institute reports no consistent evidence from household appliance use for childhood leukemia. Appliance fields drop sharply at about 1 foot.