for HARDSIDE Waterbeds

Complete Hardside Waterbed Mattress Replacement Kits

Our hardside waterbed mattress kits make replacing your waterbed simple and hassle-free. Designed specifically for rigid wooden frames that are either stained, upholstered or painted. Every kit includes a durable replacement water mattress alongside essential heating and maintenance accessories for a complete system refresh.

What’s Included in Our Hardside Kits

• Hardside Water Core: Heavy-duty vinyl mattress crafted for solid timber surrounds, available in motion-stability levels from Free Flow (full movement) to HT5500 (99% motionless).
• Heavy-Duty Safety Liner: Fitted hardside safety liner engineered to line your timber frame and protect your bed base deck.
• Thermostatic Heating System: Includes an energy-efficient heater (Carbon Classic for Mono setups, or Silvertec for Dual setups) for controllable warmth year-round.
• Starter Maintenance Pack: Comes complete with a 1-year bottle of premium waterbed conditioner and a bleed-pump air extractor.

Frequently Asked Questions

What is the difference between a hardside and softside mattress kit?
Hardside kits are designed to sit inside a rigid wooden frame without foam bolsters, whereas softside kits are sized for foam bolsters/shoulders.

Are these kits suitable for all standard UK wooden waterbed frames?
Yes. Our hardside kits are manufactured to fit standard UK dimensions, including Single, Super single,  Double, King, and Super King timber waterbed frames. Also available are the American sizes of American Queen And American King.

Do I need to replace my safety liner and heater when getting a new mattress?
Replacing your liner and heater at the same time as your mattress ensures complete peace of mind, optimal thermal efficiency, and long-term protection for your bed frame.