Description
While less common today, Sterling offers a solution for those that have a 6 1/4″ fill depth waterbed mattress
The 6621 bladder is positioned between two additional comfort layers, as well as a full-size layer of support for your lumbar spine. The Sterling Endura III PVC and tethered wave control system minimize motion transfer through the mid-fill 6.25 water bladder for undisturbed sleep on both sides of the bed.
- Perfect Firm-Soft Balance
- Long-Lasting PVC Design
- Tethered Wave Control
- Double Lumbar Layers
Mid Fill
Mid or medium fill offers the perfect balance between supportive firmness and contouring comfort.
Wave Control
A tethered wave control system prevents excessive motion transfer to keep you and your partner asleep.
Endura III PVC
Our proprietary Sterling Endura III PVC system supports your body and maintains the structural integrity of the mattress so you can enjoy your Sterling Softside Mattress longer.
Dual Lumbar
Two layers of lumbar support eliminate the occurrence of sleep-related back pain, so you can stay asleep through the night and wake up feeling well-rested and energized.
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