Is It Safe to Sleep With Candles Lit? Fire Safety Tips

Reviewed by the Sleep Well Tips Editorial Team

Quick answer: No. Extinguish every candle before you fall asleep. A flame left burning while you rest raises your risk of house fire and, in enclosed rooms, exposes you to low levels of carbon monoxide. If you want the light or scent of a candle at bedtime, put it out before you close your eyes and switch to a flameless option instead.

Is Sleeping with Candles Bad?

Why Fire Departments Warn Against Sleeping With a Candle Lit

The National Fire Protection Association tracks candle fires across the United States. Its research shows candles start thousands of home fires every year, and bedrooms are the single most common room for those fires to begin. Sleep is a factor in roughly a third of candle fire deaths, according to NFPA data.

A lit candle needs no encouragement to spread. A wax pool, a knocked-over holder, or a curtain caught by a draft turns a small flame into a house fire within minutes.

The U.S. Fire Administration recommends you extinguish candles whenever you leave a room or go to bed, and avoid using them in bedrooms altogether.

What Happens When You Fall Asleep With a Candle Burning

Once you are asleep, you stop watching the flame. A candle left unattended:

  • Burns down unevenly and tips its holder
  • Ignites bedding, curtains, or paper within reach
  • Keeps burning long past the safe window most manufacturers recommend, which is around four hours per session

None of these problems announce themselves. You find out only after the fire starts, and by then, minutes matter.

Does a Burning Candle Produce Carbon Monoxide?

A candle flame burns wax by combining it with oxygen. Complete combustion produces carbon dioxide and water vapor, not carbon monoxide. Incomplete combustion, which happens when oxygen runs low or the room is not vented, produces trace amounts of carbon monoxide instead.

A single candle in a normal, ventilated bedroom does not build carbon monoxide to dangerous levels. Several candles burning together in a small, closed room raise the level. So does anything else in your home burning fuel: a gas heater, a stove, a fireplace.

The Centers for Disease Control and Prevention notes people who are sleeping face higher risk from carbon monoxide exposure, since the gas has no smell or color and does not wake you the way smoke does. This is one more reason to put candles out before bed rather than rely on ventilation alone.

How to Extinguish a Candle the Right Way

  • Use a snuffer. Lower the bell over the wick and hold it a few seconds until the flame goes out. This avoids the hot wax splatter blowing out sometimes causes.
  • If you blow it out, keep your face several inches back, close your lips, and use one short breath of air.
  • Wait for the wick to stop glowing before you leave the room.
  • Let the wax cool and set fully before you touch or move the holder.

Never use water to put out a candle. Water on hot wax splatters and spreads.

Safer Ways to Get the Same Bedtime Mood

You do not need an open flame to relax your bedroom.

  • Flameless LED candles. Many mimic a flickering wick and run on batteries, so you leave them on all night with no fire risk.
  • A reed diffuser or plug-in scent diffuser for fragrance without combustion.
  • A dim, warm-toned lamp instead of your usual overhead light. Dimmer, warmer light supports the wind-down window before sleep better than a bright white bulb. Our guide to relaxing your mind and body before sleep covers more ways to build this into your routine.
  • A weighted blanket, gel eye mask, or other sensory tool. If ambiance is the goal rather than the flame itself, our piece on the benefits of a gel eye mask is worth a read.

The same safety trade-off applies to other things left running overnight for comfort. Our guide on sleeping with the heating on walks through a similar decision.

A Bedtime Candle Safety Checklist

Before bed, confirm you have:

  • Extinguished every candle in every room
  • Checked the wick has stopped glowing
  • Moved candles away from curtains, bedding, and paper before lighting them again tomorrow
  • Built a nightly habit, such as blowing out candles the moment you brush your teeth, so it is never the last thing you remember

The Bottom Line

Sleeping with a candle lit is not safe, regardless of the holder, the wax type, or how careful you generally are. Put it out before bed, every time. If you want light or scent through the night, a flameless option gives you both without the risk.

Sources

Similar Posts