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Sleep Number® Waterbed Mattress Replacement
Interior (there is no foundation for the Sleep Number Waterbed Replacement)
1. Air Chamber - The heart of all Sleep Number® beds. Made of 24-gauge rubber, heat bonded at seams for strength & laminated with nonstretch cotton. Internal I-Beam reinforcements.
2. Foam Border Walls - Solid, high-density, foam blocks provide sitting support & sleeping comfort.
3. Corner Lock™ System - Create a stable interlocking perimeter and provides crisp clean corners. Rigid corners help sheets fit securely in place.