Been looking for an airpump for my airbed, which I use for camping and sleepovers. Found this at Tesco which was the cheapest I could find with both 12V car and 240V mains adapters in the box. 3 nozzles included and inflates and deflates as well. Well worth the £6.00. Cheapest I could find elsewhere for a DUAL powersupply pump was I think £9.99 plus shipping.
Hope this helps. With camping season nearly over, ideal to use the airbed for sleepovers!