Hi jege41,
Biogel is just one of hundreds of tradenames for similar materials (gel impregnated memory foam) that have little meaning. the most important information is the type of material rather than the name they have given it. The gel based foams that are becoming more common in the industry are certainly step in a “good” direction but the claims about them are overblown IMO and there are many different types. They certainly have a role to play but there are also some “regular” memory foam materials that are being developed that have improved the performance and feel of memory foam as well. You can read more about the different types of gel memory foams in post #2 here and some of the methods that are being used to help memory foam sleep cooler in post #6 here.
Many if not most of the gel memory foams don’t really supply enough information to make meaningful comparisons (such as density, the percentage of gel in the material, or other specification that would make comparing them more meaningful). Many of the gel memory foams also seem to be tradenames for the gel memory foam made by AUG/Sleep Innovations which wouldn’t be my favorite version of gel memory foam. The Biogel is likely one of these and uses particles of gel which certainly won’t strengthen the base memory foam and could possibly weaken it (compared to the same memory foam without the gel).
The benefits of gel would be its thermal conduction compared to regular memory foam (which can provide some temporary benefit to sleeping temperatures until temperatures equalize) and it’s ability to increase the compression modulus of memory foam (it gets firmer faster with deeper compression) which may help it not to sink in quite as much over the course of the night (although other memory foams without gel are similar).
Overall … it’s certainly a legitimate material choice but my own personal choice wouldn’t be the particulate versions sold at Costco (see post #4 here for some of the other options for a topper) and I would definitely want to know at least the density of the material even though for gel memory foams this really isn’t enough to make complete comparisons.
While it may not be the best quality version of the gel memory foam options … I also understand that Costco’s return policy can be a “tradeoff” that offsets the lower quality and may be worth it for some people.
Phoenix