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Softside Waterbed Series – Part 3 Shallow Fill & Tube Beds

March 18, 2025

by Irvin Saathoff
Waterbedtime Story™ sponsored by InnoMax Corp.

The Evolution of Shallow Fill Softside Waterbeds: From Classic Designs to Modern Waveless Technology

Waterbeds, once the height of luxury in bedroom furniture, have evolved dramatically since their inception. The allure of flotation sleep where one sleeps in their mattress rather than on top if it has garnered a devoted following ever since the modern day waterbed was introduced in the early 1970s. One of the most significant advancements in the history of waterbeds is the shift from traditional high-fill models to the lightweight, portable designs we see today. As technology and consumer demands have shifted, the waterbed industry has continuously refined their products. The introduction of shallow fill softside waterbed models (66% lighter), transition into portable tube water chamber designs (40 lbs each), and the development of the innovative Temperature Control Waveless Cylinder Design by InnoMax Corporation have all played key roles in transforming the waterbed industry.

The Emergence of Shallow Fill Waterbeds

In the early 1980s, waterbed manufacturers began exploring ways to make waterbeds lighter and easier to handle. The result was the shallow fill softside waterbed, which offered all the benefits of a traditional waterbed but with a much lighter and more portable design.

Shallow fill waterbeds feature bladders that are only 3 to 4 inches deep, significantly reducing the weight compared to the high-fill versions. This shallow fill design maintains the core concept of the waterbed—the ability to contour to the body and provide buoyant support—while addressing some of the logistical challenges associated with traditional models. The lighter design made these waterbeds easier to move, install, and maintain, which appealed to a broader range of consumers.

Adding therapeutic temperature control, a key fluid sleep benefit, was a major milestone in integrating Shallow Fill Softsides into the waterbed family.

Thermal Guardian Softside Waterbed Heaters for use with foam bottom Shallow Fill Tube Beds are designed to meet and exceed Underwriters Laboratories Standard UL 1445 Roller Flexing Test.

The benefits of shallow fill waterbeds were clear as they were convenient and easier to transport. These beds also became more adaptable to different living spaces, such as apartments or smaller homes. Additionally, the thinner water bladders still provided the signature comfort that waterbeds were known for, with similar floating and weightless sensations.

Shallow fill waterbeds still had a challenge to address however: the inherent waves that came with the movement of water. While some users loved the motion, others found it disruptive, particularly for couples or light sleepers. To overcome this issue, manufacturers began developing new ways to reduce or eliminate the waves and movement that were characteristic of traditional waterbed designs.

InnoMax’s Waveless Cylinder Design has withstood the test of time and remains an industry standard for reliability.

The Rise of Waveless Technology

The demand for a more stable waterbed led to the development of waveless technology. Waveless waterbeds used internal baffles or chambers within the water bladder to reduce the movement of water, creating a more stable sleeping surface. InnoMax Corporation, a leading innovator in the waterbed industry, took these concerns to heart and began developing what would become one of the industry standard: the Waveless Cylinder Design.

InnoMax’s Waveless Cylinder Design

InnoMax’s Waveless Cylinder Design was a game-changer in the world of waterbeds. The tubes were designed to minimize the wave effect, offering a more stable sleeping surface with minimal motion transfer. Additionally, the cylindrical tubes were placed inside a softside frame, which contributed to a sleeker, more modern Softside look while maintaining the waterbed’s signature comfort.

One of the key benefits of the Waveless Cylinder Design was its portability. Compared to traditional high-fill waterbeds, the cylinder tubes were much lighter and easier to manage. Each tube could be individually filled with water, with some models including mid-body support, allowing for greater customization in terms of firmness and comfort. This modular approach also made the bed more adaptable to different preferences. Some individuals preferred a softer sleep surface, while others preferred a firmer one, and the tube design allowed for these adjustments without compromising on the waterbed’s essential characteristics.

The Softside frame surrounding the tubes added another layer of convenience. Unlike traditional Hardside wooden frames which were heavy and difficult to move, the softside frame was flexible, lightweight, and easy to assemble. This allowed users to move or relocate their waterbeds with ease, making them ideal for renters or people who frequently moved.

InnoMax’s innovation also extended to the materials used in the construction of the Waveless Cylinder Tube. The company used high-quality, durable materials that were resistant to punctures and wear, ensuring that the waterbed would last longer and require less maintenance. These innovations combined to create a waterbed that offered superior comfort, portability, and durability.

Modern Advancements and Continued Innovation

Since the release of the Waveless Cylinder Design, InnoMax has continued to refine and improve their waterbed products. Today’s softside waterbeds, including those with Waveless Cylinder Design technology, come with features such as heated options, hypoallergenic materials, and advanced support systems that cater to a wide range of sleep preferences. The beds are now lighter than ever, making them even more portable and easier to manage.

Waveless Cylinder technology from InnoMax combines the best of all worlds convenience of Shallow Fill portability with the comfort and therapeutic benefits of temperature controlled fluid suspension sleep.

Shallow fill softside waterbeds are now available in a variety of sizes and configurations, from single and dual-chamber to multi-tube designs. These innovations have ensured that the waterbed remains relevant in an industry currently dominated by memory foam and innerspring mattresses.

Waterbeds, once a luxury item associated with the 1970s and 1980s, have made a resurgence in the modern era, thanks to innovations like the InnoMax Waveless Cylinder Design. These beds now offer a unique combination of comfort, portability, and practicality that appeals to a new generation of sleepers. As technology continues to advance, it’s likely that we will see even more improvements in waterbed design, further enhancing the experience of sleeping on water while addressing the challenges of weight, portability, and durability.

Conclusion

The evolution of shallow fill softside waterbeds, particularly the development of the Waveless Cylinder Design by InnoMax, has transformed the waterbed from a heavy, high-maintenance luxury item into a practical, lightweight, and customizable sleep solution. These advancements have not only made waterbeds more portable and easier to maintain but have also improved their comfort and durability. As the waterbed industry continues to evolve, it remains a testament to innovation, comfort, and the enduring appeal of a truly unique sleep experience.

Check back in with the next episode of Waterbedtime Story™ when we share yet another perspective. In the meantime please feel free to connect with InnoMax Corporation anytime at Sleep@InnoMax.com.

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