Purple Round Water Bed Matresses
Today
Typical price$388
Amazon: the cheapest today among the stores checked
Buy on AmazonPurple Round Water Bed Matresses or Zinus King Mattress?
Round Water Bed Matresses costs $4 less today, across the stores checked.
Purple Round Water Bed Matresses is $4 the cheaperZinus King Mattress is the cheaper
The comparison in detail
Zinus King Mattress
Today
Typical price$392
Amazon: the cheapest today among the stores checked
Buy on AmazonAffiliate links: if you buy, the store pays us a commission at no cost to you.
Both prices over the last 30 days
First data point for one of the two: the chart appears as the days go by.
Still only a few days of data for both to read the trend; the chart fills in as the days go by.
Where is each one cheapest today?
Updated 07/11/2026
Round Water Bed Matresses
- Amazon Lowest price$388Buy on Amazon
King Mattress
- Amazon Lowest price$392Buy on Amazon
Spec sheet side by side
| Item | Round Water Bed Matresses | King Mattress |
|---|---|---|
| Specs | ||
| Type changes | Other | Memory foam |
| General | ||
| Model changes | Round Water Bed Matresses | King Mattress |
Other comparisons
Round Water Bed Matresses orHombys Extra Thick 5-Zone Memory Foam Hospital Bed Mattress 76x36 Inches$401Compare- King Mattress orHombys Extra Thick 5-Zone Memory Foam Hospital Bed Mattress 76x36 Inches$401Compare
Round Water Bed Matresses orPurple Brand New Purple Shikibuton Trifold Foam Beds 3" Thick X 27" Wide X$377Compare
Round Water Bed Matresses orZinus 12 Inch King Ultima Memory Foam Mattress$399Compare- King Mattress orZinus 12 Inch King Ultima Memory Foam Mattress$399Compare
How we choose
Source: Catalog of partner stores, checked on 07/11/2026.
Lowest price seen for the product in the stores we read, on the day it was read, before sales tax. The model is the brand plus the name of the mattress; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.
The spec score doesn’t measure how comfortable it feels or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.