Hi mnguy,
This is one of the weaknesses of airbeds because they don’t have any progressive support and unlike other types of support layers the air bladders are either fully compressed or not compressed at all (see this article).
Yes … memory foam with holes punched in it can be one of the factors that can affect sleeping temperature although they work better if there are also air channels or a highly breathable reticulated foam under the punched memory foam so the air can escape more easily. There is more about cooling down memory foam and temperature regulation in post #6 here and the other posts it links to.
In general … polyfoam would allow more airflow than memory foam so this could also have a beneficial effect on sleeping temperature but it will also affect the “feel” of the mattress because the polyfoam would affect the amount of heat that reaches the memory foam and would affect how it feels and responds. Whether this was beneficial or detrimental would be based on your preferences and your own personal testing on the mattress. There is more about this in post #2 here.
Nobody else can feel what you feel on a mattress so the most effective way to know which mattress is best for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) would be careful and objective testing using the testing guidelines in the tutorial post (see mattress firmness/comfort levels in post #2 here).
Post #4 here also has the general guidelines I would tend to use for assessing the quality of the materials in a mattress and identifying any weak links in the design. As you can see I would tend to avoid lower density memory foam in the 3 lb range or less in layers that are thicker than about an inch or so.
Phoenix