90% to 95% Waveless (2 to 3 seconds of motion)

The Waterbed Doctor’s comment:
The 400 RXP is one our extra premium waterbed mattress. This Mattress offers more back support than the older waterbed mattresses. Using the best fiber in the industry, there are 4 layers head to foot, and 3 layers in the middle section providing extra back support. This Mattress is Considered a Soft Feel with Medium Firm Back Support.

*Waterbed Doctor Comfort Guarantee*
FREE EXTENDED 20 YEAR WARRANTY!

• 7 Year Free Replacement Warranty. Best in The Industry
• 4 Layers of Fiber Head to Foot Plus 3 Extra Layers for Better Back Support
• Molded 24 Mil Premium Vinyl
• Anchored in 4 Corners to Prevent Fiber from Shifting
• Build Your Own Bundle
• FAST FREE SHIPPING!!
  

Anchored Fiber Prevents Shifting	24 Mil Molded Vinyl	Built-in Thermometer	Extended 20 Year Warranty