Comfortaire is known for their original air technology. We have availability for all models but we have on display the G10, U11, and the N15. The beds are dual adjustable which means you can change the firmness of your bed to make it softer or firmer. It has 100 settings of firm to soft; 100 being very firm, 1 being very soft. They come with a 25 year warranty as well.
You can research comfortaire more on www.comfortaire.com but they have a 86% approval rating on consumerreport.com and are one of the best bests on the market for durablility and customer service.