The InnoMax GD800 Genesis 800 Ultra Waveless Lumbar Support Waterbed Mattress nearly eliminates motion to provide custom-tailored hydrodynamic sleepâ„¢ that contours to the body, resulting in virtually perfect body alignment for the ideal sleeping posture. The deep-fill InnoMax G800, for use with minimum rigid box or wood waterbed frames, provides near waveless support when filled properly. The G800 Ultra Waveless Lumbar Support Waterbed Mattress provides full depth flotation, near the waveless performance, and mid-body lumbar support. Other features include; 24 Mil premium vinyl, Ultra contouring sculpted body profile low tension vacuum formed sleep surface, Air release valve, 3-dimensional multi-laminate reinforced corners, 4-Way tethered support system, recessed L-Seam construction, and a thermally efficient black bottom. The SG1â„¢ (Specific Gravity 1) low tension mattress (LTM) surface features responsive levels of support for your body's varied levels of need; for the head, mid-body spinal, and leg areas. For the near-perfect body alignment, the responsive give of the generously over-cut SG1â„¢ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1â„¢ LTM surface eliminates disruption of the other sleeper when one gets out of bed and with varying weights of sleep partners. NASA astronaut training is often done underwater as it simulates the effects of being weightless because the human body, comprised of 90% water, is in balance with the fluid environment. Just as babies are suspended in a gravity-neutral fluid environment until born, InnoMax SG1 hydrodynamic sleepâ„¢ mattresses truly offer flotation support as nature prescribes. The body can only be truly relaxed when muscles do not have to constantly fight the forces of gravity. SG1â„¢ fluid suspension evenly supports your body in gravity-neutral sleep and offers a hygienic environment as they are easily cleaned with approved waterbed vinyl conditioner.
On 1-12-2026 my 13 yr old Boyd Flotation Regency 4 waterbed mattress sprung a leak, forcing me to take immediate action. After extensive (accelerated) research I purchased the Innomax Genesis 800 Ultra Waveless Lumbar Support Waterbed Mattress (Queen) - double the price I paid in late 2012.
I received the new Innomax mattress on 1-16-2026. It took 2-3 hrs. to completely fill a queen size mattress and approx. 36 hrs. to heat up to the desired temperature.
It’s much too soon to confirm the quality durability.
This is a firmer waterbed mattress than what I’ve slept on for the past 40 yrs, but it is quite comfortable.
There are 2 spouts at the foot of the bed - 1 to fill another to ‘burp’. As a height challenged person, I don’t feel these spouts when I’m in bed - though this could be an issue for taller people (a quilted mattress pad may help).
While the vinyl does have a distinct noticeable smell, it has diminished each week. Since my bedroom door is always closed, the smell is contained and hasn’t affected any other areas in the house.
My reasoning for less than 5 stars is due to the lousy tiered warranty compared to other waterbed mattress manufacturers.
Anyone who’s owned a waterbed since the 1980’s will be disappointed to discover that supplies and parts are quite limited, making it a sellers market. This means you can expect to pay at least double the price from a decade ago if you don’t want to convert to a traditional mattress (which is considerably more expensive).
My advice is to thoroughly research explore all available options (including local online markets) before you buy any waterbed supplies and replacement components.. Bonnie. Plymouth, MI. Sat May 02 2026
