Hi Zuni,
Here’s the link to “Post #4”. Also, here is a link to the explanation of Phoenix’s personal value equation.
Take a look at this article in support of Phoenix’s first point. With respect to your concerns:
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Durability - I’m sure you’ve read in numerous places on TheMattressUnderground that foam durability is closely related to density: the higher the density, the more durable the mattress. We completely agree with Phoenix on this point - you can see a detailed explanation of our position on density here.
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Sleeping hot - Many companies tout gel as the “solution” to memory foam “sleeping hot”; for the most part we agree, but with qualification: gel increases the specific heat capacity of the foam (ie. it’s ability to store heat), which helps by capturing and storing excess heat from the sleeper early-on during the night. However, without other cooling mechanisms (airflow, moisture-wicking, etc), this heat-sink effect diminishes as the night progresses. (Here is a more succinct explanation). The Sonata makes use of an airflow layer, and lower-density foam (inherently more breathable) to compliment the effect of the gel.
As for customers who have bought Novosbeds, please see this thread here. You can also search for all Novosbed discussion on this forum with this link.
Best of luck!
Novosbed