Tempurpedic

Well, most people prefer a mattress overlay made of fabric but an air mattress overlay sometimes do just fine. In fact it may even work better. As the air mattress is made of vinyl material, one can easily wipe it clean with cloth. It is ultra comfortable, and the straps make sure that it fits securely in place.  When not used as topper, you may bring this during campings or become extra bedding for a visiting relative.

Via Overstock

Experience the comfort of the Tempur-Pedic Swedish Sleep System® even when you’re away on a trip with this travel set.

The package contains a mattress overlay and the Tempur-Pedic Travel pillow. Everything is packed in a waterproof duffel back and the items may be washed via machine.

The set carries a 3year warranty, too.

Via 

For you and your child’s convenience,  a quilted mattress protector laid across the bed will help absorb bed wetting, leaving your child with much comfort and less distress when sleeping. The absorbent pad can take up to six cups of liquid and has a vinyl liner that maintains the dryness of the surface. And you can easily change the pads, rather than the whole bedding, and go back to bed the following night.

The pad is machine washable and is available in all sizes.

Via Waterproof Bedding 

Travelers will find comfort in this sleep set from Tempur-Pedic, especially when your travel requires you to forego five-star accommodations for the time being, such as in a camping adventure.

This invaluable set includes a 79″ L x 27 1/2″ W x 1 1/2″ H mattress overlay and a Travel Neck Pillow you can store in a handy waterproof duffel-style bag. Both the mattress overlay and neck pillow have machine washable terry velour covers. Limited 3-year warranty.

You can purchase this at Bed Bath & Beyond