A short queen memory foam mattress can make an RV, camper, or compact guest bed more comfortable, but the right choice depends on more than its size. Think about thickness, firmness, heat management, and how much room you have beneath cabinets or around the bed. These five options range from a firm, low-profile mattress to thicker models with added cooling and pressure-relief features.
Quick Comparison
| Mattress | Height | Feel or support | Standout features |
|---|---|---|---|
| LUCID 5 Inch Gel Memory Foam Mattress | 5 inches | Firm | Gel and bamboo charcoal infusions; low profile |
| COOL GEL 8-Inch Memory Foam Mattress | 8 inches | Medium firm | Gel foam; CertiPUR-US certified foam; fiberglass-free barrier |
| GRBSY 12-Inch RV Memory Foam Mattress | 12 inches | Firm support | 7-zone design; cooling cover; reinforced edges |
| Zinus 8-Inch Green Tea Memory Foam Mattress | 8 inches | Medium firm | Green tea and castor oil infusions; CertiPUR-US certified foam |
| Zinus 10-Inch Ultima RV Memory Foam Mattress | 10 inches | Medium firm | 7-zone comfort system; charcoal infusion; 10-year limited warranty |
Our Picks: Best Short Queen Memory Foam Mattress reviews
1. LUCID 5-Inch Gel Mattress: Best for a Firm, Low-Profile Fit
This 5-inch LUCID mattress is the thinnest option here, making it worth considering when a taller bed could interfere with an RV window, storage area, or overhead space. Its foam layers include 1 inch of ventilated gel memory foam over 4 inches of supportive memory foam infused with bamboo charcoal.
The brand describes the feel as firm and says the foam contours to your shape to help relieve pressure. Gel is included to help with cooling, while bamboo charcoal is intended to absorb odors. Those features may be useful in a compact sleeping space, though they do not guarantee a cool sleep surface for every person or climate.
The trade-off is its low profile. It takes up less vertical room than the 8-, 10-, and 12-inch choices, but offers less foam depth. If you prefer a more cushioned feel or want a taller mattress, one of the thicker options may be a better match. The mattress arrives compressed and should be given 24–72 hours to expand fully.
Pros:
- Low-profile design can suit space-limited setups
- Firm feel may appeal to people who prefer a stable sleep surface
- Includes ventilated gel memory foam and bamboo charcoal-infused foam
- Made without fiberglass, according to the product details
Cons:
- Its 5-inch profile may feel too thin for shoppers seeking deeper cushioning
- Firmness can feel less comfortable if you prefer a plush surface
Verdict: Choose the LUCID if you need a firm short queen mattress with a particularly low profile and do not require the extra depth of a thicker model.
2. COOL GEL 8-Inch Mattress: A Balanced Medium-Firm Choice
This 8-inch mattress pairs a breathable comfort layer with a high-density foam core. Its medium-firm feel is intended to balance contouring and support, making it a flexible option for a guest room, dorm, or short queen bed in a vehicle. The listing title also includes a pillow, but the supplied product details do not describe its type or specifications, so check the listing for bundle information.
The gel-infused foam has an open-cell structure designed to support airflow and draw heat away from the body. The mattress is also described as having body-contouring foam to distribute weight and ease pressure around the shoulders, hips, and back. These are useful design features to consider, though memory foam can still feel warm to some sleepers.
The foam is CertiPUR-US certified, and the product details identify a fiberglass-free fire barrier. It is compatible with platform beds, slatted frames, box springs, and adjustable bases. Compared with the 5-inch LUCID, it offers more foam depth; compared with the 10- and 12-inch options, it keeps a more moderate height.
Pros:
- Medium-firm feel offers a middle ground between firm and plush
- Gel foam and an open-cell structure are designed to encourage airflow
- CertiPUR-US certified foam and a fiberglass-free fire barrier
- Works with several common bed bases
Cons:
- At 8 inches, it may not provide as much depth as the taller choices
- The supplied details do not explain the included pillow
Verdict: Consider this mattress if you want a medium-firm 8-inch option with cooling-oriented foam and a fiberglass-free barrier.
3. GRBSY 12-Inch RV Mattress: Best for a Deeper Cushion
The GRBSY stands out for its 12-inch profile, the tallest in this group. It is designed for RV use and combines gel-infused memory foam with a 7-zone ergonomic design and a responsive foam layer. The brand says these elements are intended to cushion pressure points and support the body, including the hips and lower back.
For temperature management, the mattress has a cool-touch IceSilk cover and gel-infused foam. Its product details also describe a washable cover, a fiberglass-free liner, CertiPUR-US foam, and an OEKO-TEX cover. Reinforced edges are another stated feature, which may be helpful when sitting or sleeping near the side of a bed.
That extra height is both its main draw and a key fit concern. Before choosing it, measure your RV bed area and check nearby cabinets, windows, and other clearances. The thicker profile also makes it a less natural choice for a low-clearance setup than the LUCID or the 8-inch mattresses. Its more elaborate feature set may appeal to shoppers who want added cushioning, but the product description does not provide details about a warranty.
Pros:
- Tall 12-inch profile provides more foam depth than the other options
- 7-zone design and responsive foam are intended to support pressure relief
- Cooling cover, gel foam, and washable cover are listed features
- Product details identify CertiPUR-US foam, an OEKO-TEX cover, and a fiberglass-free liner
Cons:
- Its height may not fit every RV bed area or surrounding space
- The supplied details do not specify a warranty
Verdict: Pick the GRBSY if you want the deepest mattress here and have confirmed that a 12-inch profile will fit your RV setup.
4. Zinus 8-Inch Green Tea Mattress: A Mid-Height, Medium-Firm Pick
This Zinus mattress has an 8-inch profile and a medium-firm feel. Its memory foam is described as conforming to the body for pressure-relieving support. That combination makes it a straightforward option for shoppers who want more cushioning depth than a 5-inch mattress without moving to a taller 10- or 12-inch design.
The foam is CertiPUR-US certified and infused with green tea extract and castor seed oil, which the brand says are used to help retard odor and bacteria. The mattress ships compressed in a box for delivery and setup. As with any mattress in a box, plan for time and room to unpack it and allow it to expand according to the listing instructions.
The product details provide less information about cooling features than the COOL GEL and GRBSY options. If sleeping temperature is a main concern, those models have more explicit airflow or cooling features in their descriptions. The Zinus is better suited to shoppers focused on medium-firm contouring and a moderate profile.
Pros:
- Medium-firm feel and an 8-inch height suit a range of compact setups
- Conforming memory foam is designed to relieve pressure
- CertiPUR-US certified foam
- Green tea and castor seed oil infusions are intended to help retard odor and bacteria
Cons:
- The supplied details do not highlight a specific cooling layer or cover
- It is shorter than the 10- and 12-inch options if you want a deeper mattress
Verdict: Choose this Zinus if you want a medium-firm, mid-height short queen mattress with certified foam and a simple feature set.
5. Zinus 10-Inch Ultima RV Mattress: Best for Zoned Support
The Zinus Ultima is a 10-inch RV mattress with a medium-firm feel and a 7-zone comfort system. The brand says the zoned design is intended to mold to the body and relieve pressure around the hips, shoulders, and neck. It offers more height than the 8-inch models while staying below the 12-inch GRBSY.
Green tea and purified charcoal infusions are used in the foam to help keep the mattress fresh, according to the product details. Its foam is CertiPUR-US certified, and the cover is OEKO-TEX certified. The mattress is also described as fiberglass-free and includes a 10-year limited warranty.
The 10-inch height may be a practical middle ground if your RV has room for a thicker mattress but you do not want the tallest profile in this comparison. Still, measure the bed area and surrounding clearances before ordering. Although the product description mentions breathable airflow, it does not specify a gel layer or a cooling cover, so shoppers prioritizing explicit cooling materials may prefer the COOL GEL or GRBSY.
Pros:
- 7-zone comfort system is designed for pressure relief
- Medium-firm feel and 10-inch profile balance cushioning and height
- CertiPUR-US certified foam and an OEKO-TEX certified cover
- Includes a 10-year limited warranty
Cons:
- May be too tall for some RV bed clearances
- The supplied details do not call out a gel cooling layer
Verdict: Consider the Zinus Ultima if you want an RV-focused, medium-firm mattress with zoned support and a stated limited warranty.
How to Choose a Short Queen Memory Foam Mattress
Measure the bed and nearby clearances
Do not rely on the “short queen” label alone when buying for an RV or compact bed frame. Measure the sleeping area and compare it with the mattress dimensions shown on the product listing. Also check the height available beneath windows, cabinets, and other nearby features. A 12-inch mattress can feel very different in a tight space from a 5- or 8-inch model.
Pick a height that suits your setup
Mattress height affects both comfort and fit. The 5-inch LUCID is the lowest-profile choice here, while the 8-inch options offer a middle ground. The 10-inch Zinus and 12-inch GRBSY provide more foam depth but require more vertical clearance. Consider the height of your existing bed platform and how easily you need to get in and out of bed.
Match firmness to how you sleep
The LUCID is described as firm, while the COOL GEL and both Zinus options are listed as medium firm. The GRBSY is described as having firm support. A firmer feel may appeal if you prefer a more stable surface, while medium firm can offer a balance of contouring and support. Comfort is personal, so use the listed feel as a starting point rather than a guarantee.
Consider heat and airflow features
Memory foam can hold warmth, so compare the cooling details if you tend to sleep hot. The LUCID has ventilated gel foam, the COOL GEL has gel foam with an open-cell structure, and the GRBSY lists both gel foam and a cool-touch cover. The Zinus models have other stated features, but their supplied details do not describe the same specific cooling materials.
Check material and safety information
Certifications and fire-barrier details can help you compare mattresses, but read each listing carefully to understand what is certified. The COOL GEL and GRBSY descriptions identify fiberglass-free construction, and the LUCID says it is made without fiberglass. The Zinus Ultima lists CertiPUR-US certified foam and an OEKO-TEX certified cover. These details are product-specific, so do not assume one mattress has the same materials as another from the same category.
Think about delivery and expansion time
These mattresses ship compressed in a box. Make sure you can move the box to the sleeping area and unpack the mattress with enough room for it to expand. The LUCID, COOL GEL, and Zinus Ultima details advise allowing 24–72 hours for full expansion. Follow the instructions supplied with the mattress you choose.
Compare the warranty and care details
Warranty coverage and care instructions vary by product. The Zinus Ultima lists a 10-year limited warranty, while the GRBSY description identifies a washable cover. The supplied details do not provide the same warranty or care information for every option. Confirm the current terms on the product listing before you buy, especially if the mattress will see frequent use in a vehicle.
Frequently Asked Questions
What should I measure before buying a short queen mattress?
Measure the bed platform and compare those measurements with the product listing. Also check mattress height clearance near cabinets, windows, and other features. This is especially important for the 10- and 12-inch options.
Which mattress in this group has the lowest profile?
The LUCID is 5 inches tall, making it the lowest-profile option in this comparison. It may suit a tight space, but its thinner build will not provide the same foam depth as the taller mattresses.
Which options are described as medium firm?
The COOL GEL 8-inch mattress and both Zinus mattresses are described as medium firm. The LUCID is listed as firm, and the GRBSY is described as providing firm support.
Which short queen mattress has the most explicit cooling features?
The GRBSY lists a cool-touch IceSilk cover and gel-infused foam. The COOL GEL also highlights gel foam and an open-cell structure, while the LUCID includes ventilated gel memory foam. Cooling features can help, but they do not ensure that every sleeper will stay cool.
Do these mattresses need time to expand after delivery?
Yes. These models ship compressed in a box. The LUCID, COOL GEL, and Zinus Ultima details advise allowing 24–72 hours for full expansion. Check the instructions included with your selected mattress for its specific guidance.
Are these mattresses suitable for RVs?
Several are presented for RV use, including the GRBSY and Zinus Ultima. Other models list RVs or campers among their possible uses. Before ordering, confirm that the mattress dimensions and height fit your particular bed platform and surrounding space.
Which option includes a stated warranty?
The Zinus 10-inch Ultima listing includes a 10-year limited warranty. The supplied information does not state warranty details for every mattress, so check each product listing for its current coverage and terms.
Final Recommendation
For a low-clearance setup, the LUCID 5-inch mattress is the clearest fit. If you want a medium-firm option with specific gel and airflow features, consider the COOL GEL 8-inch model. For a thicker RV mattress with zoned support, compare the Zinus Ultima and GRBSY, paying close attention to the height your space can accommodate. Measure your bed area and review each listing’s material, care, and warranty details before choosing.