ViscoSoft 4 Inch Memory Foam Mattress Topper Short Queen - RV Fit

In this review of the ViscoSoft Select High Density 4 in mattress topper short queen, the bottom line is simple: it is a solid way to upgrade an RV or camper bed that needs better support and pressure relief. The reviewer found the topper confidently rated for durability and spinal alignment thanks to its memory foam density of over 3 lbs per cubic foot and a medium-firm feel. For anyone seeking improved sleep quality, reduced hip and knee pressure, and a cool, clean sleeping surface, this topper delivers the single biggest benefit of sustained support without the early sag typical of lower-density foams.

Key Features

• High density memory foam: The over 3 lbs per cubic foot foam provides consistent support and resistance to permanent indentations for longer-lasting comfort.
• Medium-firm feel: This firmness level balances pressure relief and spinal alignment, which helps reduce aches in hips, knees, and lower back for many sleepers.
• Gel-infused breathable foam: Gel infusion and ventilated foam help draw heat away from the body and promote airflow for a cooler night.
• Removable bamboo-rayon cover: The cover arrives fitted, is machine-washable, and adds a protective, cleanable layer that resists dust and allergens.
• Secure fit for RV beds: A slip-resistant bottom and adjustable elastic straps keep the topper in place on short queen and other camper mattresses.
• Uniform single-block construction: Made from one solid foam block to avoid dips and provide even edge support when getting in and out of bed.

Who It's For

This topper is best for RV owners, campers, and people with shorter queen beds who want to add substantial support without replacing the mattress. It suits sleepers who favor a medium-firm surface and those who need targeted pressure relief for hips, knees, or lower back pain.

Those who prefer a very soft, pillow-top feel or have beds that require very thin toppers for fitted sheets might want to look elsewhere. Also, if you need a topper with zoned firmness or specialized coil support, a high-density memory foam topper will not provide that targeted construction.

Pros & Cons

Pros

• Reliable pressure relief and spinal alignment from high-density memory foam.
• Cooler sleeping surface thanks to gel infusion and ventilated foam.
• Removable, machine-washable bamboo-rayon cover with a slip-resistant bottom and straps for a secure fit.
• Durable single-block construction that resists sagging and offers solid edge support.

Cons

• Some users may find the medium-firm feel not soft enough if they prefer a plush top layer.
• A few people report mixed impressions of initial odor, though this varies by unit and typically dissipates.

Specifications

Brand	ViscoSoft
Thickness	4 in
Size	Short Queen (RV)
Foam density	Over 3 lbs per cubic foot
Cover material	Removable bamboo-rayon
Cooling feature	Gel-infused, ventilated memory foam
Guarantee	60-Day No Hassle Guarantee

Our Verdict

The ViscoSoft 4 in Select High Density topper is a practical, long-lasting upgrade for RV and short queen beds, delivering meaningful pressure relief, cooling benefits, and a secure, washable cover. It is a strong value for sleepers who need firmer, supportive comfort and reliable edge stability, though those seeking a very plush surface should consider a softer alternative.

Frequently Asked Questions

Will this topper fit an RV short queen mattress?
Yes, this model is specifically offered in a short queen size and includes a slip-resistant bottom and elastic straps to keep it secure in an RV.

Is the cover washable?
Yes, the bamboo-rayon cover is removable and machine-washable, and it arrives already fitted to the foam.

Does the topper sleep hot?
The topper uses gel-infused and ventilated memory foam to pull heat away from the body and improve airflow, so it tends to sleep cooler than non-ventilated foam.