Sterling ER400 95% Super Waveless, Softside Deep Fill 8'' Mattress

The third layer of lumbar support in the ER400 makes it one of our most popular models. Most sleepers struggle with back pain on mattresses that are too soft and body aches on beds that are too firm. This super waveless model gives you extra support where you need it and responsive cradling where you don’t.

S-Class 24 Mil Premium Designer Molded Top Softside Waterbed Mattresses Made in the USA!

Motion Transfer

Superwave decrease minimizes activity transfer to assist you in going to sleep and also to stay asleep, also when your partner moves. The ER400 falls in our second tier of wave control with the perfect combination of stability and cloud-like softness.

Deep Bladder 8”

Why choose a deep water bladder? You want to sleep like a weightless baby in plush, cloud-like comfort, requiring more than six inches of water. If you’re looking for more firmness, try our mid-fill.

Lumbar Support

Three layers of lumbar support help eliminate sleep-related back pain by holding your spine in a more natural position throughout the night. Whether you sleep on your side or your back, the ER400 provides support where you need it.

The Real Benefit

Unlike foam beds in a box, innerspring beds, or air beds, waterbeds never get softer with time. The level of support you feel the very first night is the same level of comfort you will get 5, 10, 15 years or beyond from now, making waterbeds the right choice for most sleepers. While most traditional beds may only last 8-10 years, our waterbeds can remain in use for up to 30 years with proper care.

9" 95%  Ultra Waveless  with Back Support Hardside  Watermattress

• Comes in Single and DUAL Water Mattress

• Molded S Class Designer Mattress Top

• Premium 24 mil Endura III™ Vinyl, Purple

• 4 Full-Size Sheets 1.5 oz. Fiber

• 3 Layers of Lumbar Support

• 5-year/Lifetime Prorated Warranty

• Fill and Air Vent Valves

• Black Bottom; "L" Corner Construction

• Tethered Wave Control System

• Made in the U.S.A

• Available In California King 72 x 84, Eastern King 76 x 80, and Queen 60 x 80

• FREE SHIPPING!