---
product_id: 56867876
title: "California King 90% Waveless Waterbed Mattress with Lumbar Support"
brand: "u.s. waterbed"
price: "¥147210"
currency: JPY
in_stock: true
category: "U.S. Waterbed"
url: https://www.desertcart.jp/products/56867876-california-king-90-waveless-waterbed-mattress-with-lumbar-support
store_origin: JP
region: Japan
---

# 90% water content for natural flotation California King 84"x72" perfect fit 22 Mil premium vinyl for durability California King 90% Waveless Waterbed Mattress with Lumbar Support

**Brand:** u.s. waterbed
**Price:** ¥147210
**Availability:** ✅ In Stock

## Summary

> 💤 Float into flawless sleep with California King comfort redefined!

## Quick Answers

- **What is this?** California King 90% Waveless Waterbed Mattress with Lumbar Support by u.s. waterbed
- **How much does it cost?** ¥147210 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/56867876-california-king-90-waveless-waterbed-mattress-with-lumbar-support)

## Best For

- u.s. waterbed enthusiasts

## Why This Product

- Trusted u.s. waterbed brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Semi Waveless Design:** Minimizes motion transfer so you and your partner sleep undisturbed all night long.
- • **Complete Sleep System:** Includes fill & drain kit plus a 20-year limited warranty for peace of mind and effortless maintenance.
- • **Premium Aqua Marine Vinyl:** 22 Mil thick, double-reinforced corners, and recessed L-seams ensure long-lasting durability and leak resistance.
- • **Genesis 7008 Mid-Body Support:** Targeted spinal alignment support engineered by physicians and chiropractors for optimal posture.
- • **Hydrodynamic Sleep Technology:** Experience gravity-neutral rest with 90% water fill that cradles your body like no other mattress.

## Overview

The California King 90% Waveless Waterbed Mattress combines advanced hydrodynamic sleep technology with a Genesis 7008 mid-body support system to deliver unparalleled spinal alignment and plush comfort. Crafted with 22 Mil premium vinyl and reinforced corners, it fits standard California King hardside frames and includes a fill & drain kit. Designed for adults seeking a gravity-neutral, motion-minimized sleep experience, it comes backed by a 20-year limited warranty.

## Description

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.

## Features

- Genesis 700
- 8 Layer Mid-Body Support System.
- 22 Mil Premium Aqua Marine Vinyl.
- Fits Californina King size hardside (wood frame) waterbed (84"x72")
- 20 Year Limited Warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077MNHWZF |
| Additional Features | inlcudes fill & drain kit |
| Age Range Description | Adult |
| Best Sellers Rank | #1,187,231 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #30 in Waterbed Mattresses |
| Brand Name | U.S. Waterbed |
| Color | Green |
| Construction Type | waterbed |
| Cover Material | Vinyl |
| Customer Reviews | 4.4 4.4 out of 5 stars (162) |
| Fill Material | 4 Layer of fiber running from head to foot with extra layers in the mid section |
| Included Components | mattress, fill & drain kit |
| Item Depth | 9 inches |
| Item Dimensions | 84 x 72 x 9 inches |
| Item Dimensions L x W x Thickness | 84"L x 72"W x 9"Th |
| Item Firmness Description | Plush |
| Item Weight | 29 pounds |
| Manufacturer | U.S. Waterbed, Aqua Fusion |
| Manufacturer Part Number | CaCalifornia-King_4000L-FK4ozcd_Amazon |
| Manufacturer Warranty Description | Life time prorated warranty. |
| Material Type | Vinyl |
| Mattress Base Compatibility | Solid Foundation |
| Mattress Coil Type | Continuous Coil |
| Mattress Comfort Layer Material | Comfort Foam |
| Model Name | Cal-King_3000L |
| Model Number | Cal-King_3000L |
| Number of Items | 1 |
| Number of Layers | 8 |
| Number of Packs | 1 |
| Product Benefits | 8 Layer Mid-Body Support System. |
| Product Care Instructions | Fill with new conditioner every 6-12 months |
| Size | California King |
| Style Name | Standard Waterbed |
| UPC | 815851011484 |
| top-style | Tight Top |

## Product Details

- **Brand:** U.S. Waterbed
- **Cover Material:** Vinyl
- **Fill Material:** 4 Layer of fiber running from head to foot with extra layers in the mid section
- **Item Firmness Description:** Plush
- **Item Weight:** 29 pounds
- **Number of Layers:** 8
- **Product Dimensions:** 84"L x 72"W x 9"Th
- **Size:** California King
- **Special Feature:** inlcudes fill & drain kit
- **Top Style:** Tight Top

## Images

![California King 90% Waveless Waterbed Mattress with Lumbar Support - Image 1](https://m.media-amazon.com/images/I/51+l6KOq9yL.jpg)

## Questions & Answers

**Q: sorry, i do not understand well about: 'It has 5-6 seconds of movement " ?    please explain it in detail,    thank you**
A: I recently purchased this an love it.  I had a free flotation bed.  This bed barley makes any waves at all.  It is nothing like the free flotation bed.  I wouldn't even say it is 5 or 6 seconds of movement.  it is less.

**Q: How much water does the California king hold**
A: Approximately 300 galleons of water

**Q: What color is mattress**
A: Black/dark blue

**Q: Does this mattress fill out the frame well? Is there excess material built in or does it fit with a tight bag?**
A: Yes to your first question. No to your second.

## Frequently Bought Together

- California King 90% Waveless Waterbed Mattress with Lumbar Support
- InnoMax Premium Stand-Up Waterbed Safety Liner, King
- Blue Magic All Purpose Waterbed Conditioner, 8 fl oz (237 ml)

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**Shop now:** [https://www.desertcart.jp/products/56867876-california-king-90-waveless-waterbed-mattress-with-lumbar-support](https://www.desertcart.jp/products/56867876-california-king-90-waveless-waterbed-mattress-with-lumbar-support)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-28*