Here's an interesting concept from luxury German bath fixture company Kaldewei — their new Relax Lounger is a series of 3 double-panel folding padded boards designed specifically for their Conoduo tub. The panels can be used individually or all at once to transform your tub. Use a single panel as a shelf while lying in the bath , or use all three as a bench or mattress to recline on...
This design takes the idea of a "spa bathroom" to the next level and gives a standard fixture in any home a dual-purpose. The Relax Lounger supports up to 130 kg (286 pounds) and already existing Conoduo tubs from Kaldewei can be retrofitted to support the Relax Lounger.
While this design is a high-end (certain to be expensive) accessory for an expensive tub, the idea behind it is brilliant — if your tub could support a similiar design, would you use it?