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5 Sizes
By Innomax
Super Single
Rated 4.5 out of 5 stars.130 total votes
FREE Delivery
The InnoMax Sanctuary Free 9" Hard-Side Waterbed Mattress can help in easing back pain. It offers a full-wave motion that helps align your body in an ideal sleeping posture, as advised by chiropractors and physicians. This stylish waterbed mattress is part of the Sanctuary collection. This deep-fill InnoMax waterbed performs best when filled properly with an approved waterbed heater and water. This waterbed mattress offers full-motion body support. The seam of this mattress has been designed using specially formulated pearlized azure vinyl. It features double-reinforced corners that provide additional strength to critical pressure areas. It offers different levels of support for your body’s varied levels of need; for the leg area, spine, and head. The Sanctuary Free Flow Full Wave Waterbed Mattress from InnoMax Corporation can be easily cleaned using an approved waterbed vinyl conditioner.
It is excellent. Dorothea. Plantation, FL. Sun May 17 2026

2 Sizes
By Innomax
King
Rated 4.7 out of 5 stars.43 total votes
FREE Delivery
The InnoMax GD800 Genesis 800 Ultra Waveless Lumbar Support Waterbed Mattress nearly eliminates motion to provide custom-tailored hydrodynamic sleep™ 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 SG1™ (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 SG1™ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1™ 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 sleep™ 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. SG1™ 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. UPDATE - The new vinyl smell completely vanished within 3-4 weeks. 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. Wed Sep 16 2026

2 Sizes
By Innomax
King
Rated 4.5 out of 5 stars.18 total votes
FREE Delivery
The Innomax Genesis 900 (G900) Super Waveless Lumbar Support Spongebed™ waterbed mattress eliminates motion to provide custom tailored hydrodynamic sleep™ pampering every curve of the body, resulting in virtually perfect ear to ankle body alignment as defined by physicians and chiropractors for the ideal sleeping posture. The deep fill G900, is designed for use with minimum 9x60x84" rigid side or wood box frame. The G900 spongebed™, provides true full depth flotation and is enhanced with mid body lumbar support. Features include; 24 mil premium pearlized vinyl, ultra contouring sculpted body profile low tension vacuum formed sleep surface, pressure relieving sponge support, 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 SG1™ (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 near perfect body alignment, the responsive give of the generously over-cut SG1™ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1™ 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 under water 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 sleep™ 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. SG1™ fluid suspension evenly supports your body in gravity neutral sleep and offers hygienic environment as they are easily cleaned with approved waterbed vinyl conditioner.
This mattress fits perfect in our king size waterbed frame. It was a little hard getting used to at first because it is hard to move around on, we put a thicker pad on under our sheets and that really helped.. Denise. Carthage, MO. Sat Jan 26 2019

2 Sizes
By Innomax
King
Rated 4.4 out of 5 stars.30 total votes
FREE Delivery
This waterbed mattress substantially reduces motion to provide custom-tailored hydrodynamic sleep™, resulting in the virtually perfect ear to ankle body alignment as defined by physicians and chiropractors for the ideal sleeping posture. This deep-fill InnoMax waterbed mattress, for use with a minimum rigid box or wood waterbed frames, performs best when the fill level is below the top of the safety liner. The G700 waterbed mattress, which provides true InnoMax SG1™ full depth flotation and semi waveless performance, is additionally enhanced with mid-body support. Other features include 22 mil premium vinyl, contouring body profile low tension, sleep surface, 2" double reinforced corners, 4-Way tethered support system, recessed L-Seam construction, and a thermally efficient black bottom. The SG1™ (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 SG1™ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1™ LTM surface eliminates the 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 sleep™ 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. SG1™ fluid suspension evenly supports your body in gravity-neutral sleep and offers a hygienic environment as they are easily cleaned with an approved waterbed vinyl conditioner.
Great! We were looking for an outdoor mattress and this fit the bill. We added it to our outdoor cabana!. Tom. Orange Park, FL. Wed Aug 10 2022

3 Sizes
By Innomax
King
Rated 4.4 out of 5 stars.66 total votes
FREE Delivery
InnoMax Genesis 400 Gentle Wave Waterbed Mattress reduces motion to provide custom-tailored hydrodynamic sleep™ resulting in the virtually perfect ear-to-ankle body alignment as defined by physicians and chiropractors for the ideal sleeping posture. This deep-fill InnoMax waterbed mattress, for use with minimum rigid box or wood waterbed frames, performs best when filled properly and the fill level is below the top of the safety liner. The Genesis 400 Gentle Wave Waterbed Mattress, which provides true InnoMax SG1™ full depth flotation and gentle wave performance also includes a mid-body wave reduction system balanced to more free flow than waveless performance. Other features include 20 Mil premium vinyl, contouring body profile low tension sleep surface, 1" double reinforced corners, 4-way tethered support system, and T-Corner lap seam construction. The SG1™ (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 near-perfect body alignment, the responsive give of the generously over-cut SG1™ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1™ LTM surface eliminates the 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 Sleep™ 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. SG1™ fluid suspension evenly supports your body in gravity-neutral sleep and offers a hygienic environment as they are easily cleaned with an approved waterbed vinyl conditioner.
Wayfairs price was under all others I looked at. Good quality also. Delivery was actually earlier than scheduled.. Donna. Tucson, AZ. Sun Dec 07 2025

3 Sizes
By Innomax
King
Rated 4.5 out of 5 stars.46 total votes
FREE Delivery
The InnoMax Genesis 500 Reduced Motion Waterbed Mattress reduces motion to provide custom-tailored hydrodynamic sleep™, resulting in the virtually perfect ear-to-ankle body alignment as defined by physicians and chiropractors for the ideal sleeping posture. This deep-fill InnoMax waterbed mattress, for use with a minimum rigid box or wood waterbed frames, performs best when filled properly, and the fill level is below the top of the safety liner. The G500 waterbed mattress, which provides true InnoMax SG1™ full-depth flotation and reduced motion performance also includes a mid-body wave reduction system balanced more to free flow than waveless performance. Other features include 20 Mil premium vinyl, Contouring body profile low tension sleep Surface, 1" Double reinforced corners, 4-Way tethered support system, and T-Corner lap seam construction. The SG1™ (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 near-perfect body alignment, the responsive give of the generously over-cut SG1™ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1™ LTM surface eliminates the 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 sleep™ 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. SG1™ fluid suspension evenly supports your body in gravity-neutral sleep and offers a hygienic environment as they are easily cleaned with an approved waterbed vinyl conditioner.
The bed is so wonderful so glaf I bought it!! Sleeping like a baby!!!. William. NE. Mon Sep 17 2018

3 Sizes
By Innomax
Super Single
Rated 4.6 out of 5 stars.28 total votes
FREE Delivery
The InnoMax Genesis 600 Balanced Motion Waterbed Mattress reduces motion to provide custom-tailored hydrodynamic sleep™, resulting in the virtually perfect ear to ankle body alignment as defined by physicians and chiropractors for the ideal sleeping posture. This deep-fill InnoMax waterbed mattress, for use with minimum rigid box or wood waterbed frames, performs best when the fill level is below the top of the safety liner. The G600 Waterbed mattress, which provides full depth flotation and balanced motion performance, also includes a mid-body wave reduction system balanced between free flow and waveless performance. Other features include 22 mil premium vinyl, contouring body profile low tension sleep surface, 2" double reinforced corners, 4-Way tethered support system, recessed L-Seam construction, and a thermally Efficient black bottom. For the near-perfect body alignment, the responsive give of the generously over-cut SG1™ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1™ LTM surface eliminates the disruption of the other sleeper when one gets out of bed and with varying weights of sleep partners. The body can only be truly relaxed when muscles do not have to constantly fight the forces of gravity. SG1™ fluid suspension evenly supports your body in gravity-neutral sleep and offers a hygienic environment as they are easily cleaned with an approved waterbed vinyl conditioner.
The waterbed mattress was very good quality and exactly what I wanted. I was very pleased with my purchase.. Donna. Vienna, WV. Sat Feb 22 2025

2 Sizes
By Innomax
King
Rated 3.6 out of 5 stars.15 total votes
FREE Delivery
The InnoMax GD800 Genesis 800 Ultra Waveless Waterbed Mattress nearly eliminates motion to provide custom-tailored hydrodynamic sleep™ 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 GD800Ultra Waveless Waterbed Mattress, provides dual adjustability, 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. For the near-perfect body alignment, the responsive give of the generously over-cut SG1™ surface cradles your body while the interior elements provide complementary support. Additionally, the SG1™ LTM surface eliminates the disruption of the other sleeper when one gets out of bed and with varying weights of sleep partners. The body can only be truly relaxed when muscles do not have to constantly fight the forces of gravity. SG1™ fluid suspension evenly supports your body in gravity-neutral sleep and offers a hygienic environment as they are easily cleaned with an approved waterbed vinyl conditioner.
This is a heavy duty mattress made of heavier vinyl than most. I like the dual side compartments which works well for us.. Gene. Denton, NE. Mon Apr 04 2022