Vicks CoolRelief Cool Mist Humidifier Small to vs Vicks Humidifier 3-in-1 SleepyTime Cool Mist
Updated August 2026 — Vicks CoolRelief Cool Mist Humidifier Small to wins on capacity and run time, Vicks Humidifier 3-in-1 SleepyTime Cool Mist wins on price.
The Vicks CoolRelief Cool Mist Humidifier excels in performance and capacity, while the SleepyTime model offers versatility and a lower price.
Why Vicks CoolRelief Cool Mist Humidifier Small to is better
Capacity
1.2-gallon tank vs 0.6-gallon tank
Run Time
40 hours vs 24 hours
Performance
Better suited for medium rooms
Why Vicks Humidifier 3-in-1 SleepyTime Cool Mist is better
Price
$37.97 vs $54.99
Multifunctionality
Includes diffuser and night light
Sales Rank
Higher sales rank at 9,853
Overall score
Specifications
| Spec | Vicks CoolRelief Cool Mist Humidifier Small to | Vicks Humidifier 3-in-1 SleepyTime Cool Mist |
|---|---|---|
| Tank Size | 1.2 gallons | 0.6 gallons |
| Run Time | up to 40 hours | up to 24 hours |
| Price | $54.99 | $37.97 |
| Features | Filterless, Auto Shut-off | Diffuser, Night Light |
| Sales Rank | 60,676 | 9,853 |
Dimension comparison
Overview of the Vicks CoolRelief Cool Mist Humidifier
The Vicks CoolRelief Cool Mist Humidifier is designed to provide effective relief from cough and congestion for people of all ages. Priced at $54.99, it features a 1.2-gallon tank that offers up to 40 hours of cool mist operation. This product stands out due to its filterless design, making it easy to use and maintain. The humidifier is also equipped with an auto shut-off feature, ensuring safety when the tank is empty. Its ability to maintain optimal humidity levels makes it a valuable addition to any home, especially during cold and flu seasons.
Overview of the Vicks Humidifier 3-in-1 SleepyTime
The Vicks Humidifier 3-in-1 SleepyTime is a versatile device priced at $37.97, making it about 31% cheaper than the CoolRelief model. This humidifier doubles as an essential oil diffuser and night light, making it a multi-functional choice for children's rooms. It has a smaller 0.6-gallon tank that can provide cool mist for up to 24 hours, which is suitable for smaller spaces. Its design emphasizes creating a calming environment for children, with features that help alleviate coughs and congestion while promoting better sleep.
Features and Functionalities of the CoolRelief Humidifier
The Vicks CoolRelief Cool Mist Humidifier focuses on delivering relief from respiratory issues like cough and congestion. Its significant tank capacity allows it to run for up to 40 hours continuously, making it ideal for medium-sized rooms. The filterless design eliminates the need for replacements, simplifying maintenance. Additionally, it can be used with Vicks VapoSteam or VapoPads for enhanced comfort, integrating soothing scents into the mist. This makes it not just a humidifier but a therapeutic device for families dealing with seasonal ailments.
Features and Functionalities of the SleepyTime Humidifier
The Vicks Humidifier 3-in-1 SleepyTime stands out for its multifunctionality, serving as a humidifier, essential oil diffuser, and night light. This makes it particularly appealing for parents looking to create a soothing bedtime routine for their children. The product allows for the use of Vicks VapoPads or essential oils, adding an extra layer of comfort. It operates quietly, making it ideal for bedrooms. The 0.6-gallon tank provides up to 24 hours of mist, which, while less than the CoolRelief's output, is sufficient for smaller spaces like nurseries.
Design and Usability Comparison
In terms of design, the Vicks CoolRelief is built for simplicity and efficiency. Its larger tank means less frequent refilling, which is a significant advantage for users who prefer low-maintenance appliances. The auto shut-off feature adds an extra layer of safety, making it suitable for overnight use.
On the other hand, the Vicks Humidifier 3-in-1 SleepyTime is designed with a focus on creating a calming environment. Its night light feature and compatibility with essential oils cater specifically to children's needs. The wide-opening tank facilitates easy cleaning and refilling, which is essential for busy parents.
Performance in Different Room Sizes
The Vicks CoolRelief Cool Mist Humidifier is optimized for medium-sized rooms, providing extensive coverage and a long run time of up to 40 hours. This makes it an excellent choice for family living spaces or larger bedrooms.
Conversely, the Vicks Humidifier 3-in-1 SleepyTime is more suited for smaller rooms, such as nurseries or children's bedrooms. Its 0.6-gallon tank, while capable of lasting up to 24 hours, is better suited for short-term use rather than prolonged operation. This distinction makes each humidifier ideal for different settings, depending on user needs.
Customer Reception and Sales Performance
The Vicks CoolRelief Cool Mist Humidifier has a sales rank of 60,676, indicating a moderate level of popularity in the market. While it is a trusted brand known for quality, its higher price may limit its appeal to budget-conscious consumers.
In contrast, the Vicks Humidifier 3-in-1 SleepyTime boasts a significantly better sales rank of 9,853, suggesting a strong customer preference. Its lower price point and multifunctional features likely contribute to its appeal, making it a favored option among parents looking for value in their purchases.
Which should you buy?
Choosing between the Vicks CoolRelief Cool Mist Humidifier and the Vicks Humidifier 3-in-1 SleepyTime ultimately depends on your specific needs. If you require a humidifier for larger spaces and longer periods, the CoolRelief model, with its 1.2-gallon tank and extended run time, may be the better option despite its higher price of $54.99. However, if you are looking for a versatile, budget-friendly solution for smaller rooms, the SleepyTime humidifier at $37.97 offers excellent value, along with added features like an essential oil diffuser and night light. Each model serves distinct purposes, so your choice should align with your room size and desired functionalities.

