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ER9256 Softside Super Waveless Waterbed Mattress, Deep Fill (8") with Back Support,- Most Waveless
ER9256 Softside Super Waveless Waterbed Mattress, Deep Fill (8") with Back Support,- Most Waveless
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Sterling Sleep Systems
ER9256 Super Waveless Softside Waterbed Mattress — Parkline Series
The ER9256 is a bladder only — a cover system is required to complete your softside waterbed setup. Choose from our Plush Top, Pillowtop, or Euro Top cover systems, sold separately.
ER9256 Specs
- Series: Parkline
- Fill: Deep Fill — 8"
- Wave Level: Super Waveless — most waveless softside bladder in the Parkline lineup
- Key Features: Two lumbar support layers, four full-size 1.5 oz. fiber layers, tethered wave control, Sterling Endura III PVC
- Best For: Sleepers who want maximum wave control and double lumbar support
Warranty — Parkline Series
Covers seam and valve related leaks from date of purchase:
- Years 1–3: Full replacement (excluding shipping)
- Years 4–20: Pro-rated/discounted replacement
What Makes the ER9256 Special
Double lumbar support layers cradle the full curvature of your spine, while four full-size 1.5 oz. fiber layers and a tethered wave control system minimize motion for undisturbed sleep. The Sterling Endura III PVC structure ensures long-lasting durability.
Recommended Accessories
*Cover system, heater, fill & drain kit, and conditioner sold separately.

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Quality and comfort
We love our new soft sided waterbed. Our old one developed a leak and our local mattress store was unable to get any new beds or bladders. I came a cross Sterling . They have so many choices. Everything was in stock and our new bed shipped right away. I would recommend them if your looking for a new bed.
ER9256 Super waveless mattress
We just finally got it together, only slept on it once. I am concerned because the phone inside seems to be lumpy like there is more on one side than the other. don't know if that is a concern as it says it may take time for it to expancd completely. don't notice any problem at this point. Can't really grade it yet, box did arrive damaged, but doesn't seem to be a problem with content.
Great Mattress
Excellent, great mattress. Sleeps well!!
Still Amazing
My family and I currently own 3 of these beds. I bought a new one because literally after 20+ years I suffered an unrepairable leak. I must say that my new bed and mattress is even better than before. The mattress and bladder containment is a great improvement. And the new digital heater as well as the reinforced bed frame are a relief. I love my bed ad Sterling could not be easier to deal with. They take great care of their customers.
Sterling Softside Waterbed
We purchased our Sterling Softside Waterbed because of their courteous staff and assistance. We called several waterbed companies and visited on local store before calling Sterling. Sterling's great customer service and knowledge of their products made us go with them. Sterling's price was considerably less with a better quality bed. It was easy to install and their customer service is terrific.