I think almost all aspects have been covered except the fact that both the self inflating mattresses and airbeds are prone to puncturing.
I changed to the self inflating type (which still need a bit of blowing up) a few years ago after using the same air beds for over 20yrs. Used the rubber backed rug underneath to stop cold from rising and never suffered from cold. Last time I was out I used both the SIM and the AB as the SIM has developed a very slow undetectable leak - had the best nights sleep ever. As NM suggested, I also put the AB pillow at my feet.
Roger

