Water bed : A kind of mattress made of, or covered with, waterproof fabric and filled with water. It is used in hospitals for bedridden patients.

Example:


Taxonomy
Waterbeds, Softside Waterbeds, Hardside Waterbeds, CSN Stores, waterbed mattresses, Waterbed Heaters, Waterbed Mattress, Waterbed Sheets, one stop shop, Waterbed Supplies, Tops, waterbed accessories, Conditioner, waterbed liners, dual chamber, shallow, deals, Info & Policies.

Defination from the web:
Waterbed.com is your one stop shop for waterbeds and accessories. In addition to our impressive selection of beds we also offer ... Waterbed Accessories- $8 + " Waterbed Sheets- $53 + " Bed Pillows- $13 + Shop Easy. Waterbeds. Softside Waterbeds " Shallowfill " Midfill " Deepfill ...