Quick Answer
It is generally safe and advisable to sleep in a room with a dehumidifier running, as long as the dehumidifier is in good working condition. Dehumidifiers help regulate humidity levels which can improve sleep comfort and air quality. However, there are some precautions to take, like keeping the dehumidifier away from the bed and emptying the water tank regularly. Maintaining the dehumidifier and using it according to the manufacturer’s instructions is important. Overall, dehumidifiers are designed to operate safely for continuous use.
What is a Dehumidifier and How Does it Work?
A dehumidifier is an appliance that removes excess moisture and humidity from the air. It works by drawing humid air into the unit using an internal fan. The air then passes over a set of cold coils where moisture condenses out of the air, similar to how moisture accumulates on the outside of a cold glass.
The condensed water drips into a collection tank inside the dehumidifier. The now dried air then passes back out of the dehumidifier into the room at a warmer temperature. This lowers the relative humidity of the room, making it feel less damp and muggy.
Most dehumidifiers are portable units that can be moved room to room as needed. Larger capacity dehumidifiers are also available for basements or other large, damp spaces.
Key Components of a Dehumidifier
- Fan – draws damp air into the dehumidifier
- Cold coils – air passes over these cold surfaces where moisture condenses
- Collection tank – collects and stores condensed water for disposal
- Air filter – cleans dust and allergens from air
- Humidistat – measures and adjusts humidity levels
- Defrost system – melts frost buildup on coils
Types of Dehumidifiers
There are two main types of dehumidifiers:
- Refrigerant dehumidifiers – Use a refrigeration system with a compressor and coils to condense moisture. These work similarly to air conditioners.
- Desiccant dehumidifiers – Use chemical drying agents called desiccants, such as silica gel, to absorb moisture. These desiccants need to be periodically heated to remove the moisture and reuse the desiccant.
Refrigerant dehumidifiers are more common for home use as they are more energy efficient and have lower operating costs. Desiccant dehumidifiers can operate in colder temperatures where refrigerant dehumidifiers struggle.
Is it Safe to Sleep With a Dehumidifier On?
For most modern, working dehumidifiers that are used according to manufacturer guidelines, it is perfectly safe to sleep with the dehumidifier running. However, there are some factors to consider for safe operation:
Potential Safety Risks
- Faulty electrical components leading to fire hazard
- Leaking water coming into contact with electricity
- Tripping over power cord
- Bumping into hot coils and burning
- High noise levels disturbing sleep
Precautions for Safe Use
- Buy a dehumidifier from a reputable brand
- Read all safety instructions
- Check electrical cords are in good condition
- Keep away from bed and walking paths
- Empty water tank before it overflows
- Clean filter regularly
- Turn off when not in use
- Replace if leaking, overheating or strange noises
Following basic electrical safety and the manufacturer’s guidelines on dehumidifier operation and maintenance is important to minimize any risks.
Dehumidifier Placement for Sleeping
Where you place the dehumidifier can impact safety and performance:
- Away from bed – Reduces noise, tripping hazard, bumping risk
- Near room entrance – Maximizes air circulation
- On hard, flat surface – Reduces vibrations and potential tipping
- Near outlet – Allows continuous use without cord hazards
- Elevated – Improves air flow to unit
- Accessible – Allows tank emptying and maintenance
Avoid blocking air flow to the dehumidifier intake and outlet. Leave 1-2 feet clearance around the unit.
Bedroom Dehumidifier Positioning Tips
- Corner of room away from bed
- On dresser or shelf safely away from bed
- Inside closet with louvred doors if noise is an issue
- Outside bedroom in hallway if noise bothersome
What Humidity Level is Best for Sleeping?
The optimal humidity range for sleeping comfort is generally between 40-60% relative humidity. This helps reduce issues like:
- Dry air causing sinus congestion, bloody noses
- Wet air allowing mold, dust mites to thrive
- Static electricity from dry air
- Excess sweating from humid air
Aim to keep your bedroom humidity in the 40-60% ideal zone. Use a hygrometer to monitor conditions.
Recommended Humidity Levels for Sleep by Season
| Season | Ideal Humidity for Sleep |
|---|---|
| Winter | 30-45% |
| Spring | 40-55% |
| Summer | 50-60% |
| Fall | 40-50% |
Adjust dehumidifier settings accordingly throughout the year. Use a lower humidity setting in warmer months when natural humidity is higher.
Dehumidifier Operation Tips for Sleeping
Follow these tips for safely running your dehumidifier at night:
- Choose low fan speed to reduce noise
- Close doors and windows for efficiency
- Make sure unit tilts backwards to drain properly
- Empty water tank before bedtime
- Set humidistat to 40-60% range
- Clean filter every 1-2 weeks of use
- Turn off auto-restart function if power cuts out
- Disable LED control lights if too bright
- Place on rubber pads to absorb vibrations
- Keep airflow paths unblocked
This helps optimize dehumidifier performance and safety through the night.
Potential Drawbacks of Sleeping with a Dehumidifier
While generally safe, there are some downsides to using a dehumidifier in your bedroom:
- Noise – Compressor and fan sounds may disturb light sleepers
- Light – Status lights on unit could be bright
- Air flow – High fan speed settings can create drafts
- Electricity – Constant power draws increase energy costs
- Cleaning – Needs filter changes and tank emptying
- Size – Takes up floor space in bedrooms
Proper placement away from sleeping areas and using lower fan speeds can help. Also turning off unit when humidity is within target levels minimizes operation time.
Alternatives to Dehumidifiers for Sleep
For those concerned about potential dehumidifier drawbacks, some alternatives include:
- Air conditioner – Cools and dehumidifies but higher energy use
- Portable fan – Improves air circulation and evaporation
- DampRid – Absorbs moisture with calcium chloride but needs replacement
- Desciccant dehumidifier – Quieter but less efficient for home use
- Whole home dehumidifier – Installed as part of HVAC system
- Eva-dry Renewable dehumidifier – Silica beads absorb moisture but requires recharging
Simple fixes like using fans, opening windows, and fixing sources of moisture like leaks can also help. Evaluate your specific humidity concerns when choosing alternatives.
Signs You Need a Dehumidifier in Your Bedroom
Watch for these signs indicating excess moisture and the need for a dehumidifier:
- Humidity over 60%
- Condensation on windows and walls
- Mildew smell
- Damp, musty bedding
- Sweating and sticking to sheets
- Allergies and respiratory issues
- Peeling paint and warped furniture
- High power bill from running AC to dehumidify
A humidistat reading over 60% or persistent condensation calls for a dehumidifier. High indoor moisture also encourages mold and bacteria growth.
Tips for Choosing a Bedroom Dehumidifier
Look for these key features when selecting a dehumidifier for your bedroom:
- Capacity for room size – Aim for 20-30 pint capacity for large master bedrooms
- Low decibel rating – Under 50 db for quiet operation
- Auto humidistat – Maintains set humidity level
- Washable filter – Reduce operating costs
- Timer and night settings – Customize run times
- Backwards tilt drainage – Allows gravity emptying into sink or tub
- Front hose connection – For constant draining
- Defrost function – Prevents icy buildup
Also check Energy Star ratings for energy efficiency and read customer reviews to help select a suitable model.
Top Rated Bedroom Dehumidifiers
| Brand | Model | Capacity | Noise Level |
|---|---|---|---|
| Frigidaire | FAD704DWD | 70 Pint | 51 db |
| hOmeLabs | HME020031N | 20 Pint | 46 db |
| Tosot | GDM30 | 30 Pint | 43 db |
| Ivation | IVADM45 | 45 Pint | 48 db |
Look for a suitable capacity dehumidifier that operates quietly. Check current pricing and availability for models that meet your needs.
Conclusion
Using a dehumidifier in your bedroom can greatly improve comfort and air quality during sleep. Operating a dehumidifier is safe for overnight use with some simple precautions:
- Place safely out of walking paths and away from bed
- Follow electrical safety guidelines
- Keep unit clean and well-maintained
- Use manufacturer recommended settings
- Select appropriate capacity and quiet operation
Keep humidity between 40-60% for ideal sleeping conditions all year round. Monitor with a hygrometer and adjust dehumidifier accordingly. A bedroom dehumidifier can help provide a healthier, more comfortable sleep environment.