Hi Sam.Attress,
The Bolsa unit in the Luma Sleep is only one zone. I think you are including the edge reinforcement as a zone, which you wouldn’t normally do in describing (just to be sure I’m on the “same page” as you are). You could change to the three-zone Combi-Zone with edge reinforcement if you desired zoning, although the spring unit in either the Nest or the two offered in the Luma should all suffice your BMIs. Luma tends to recommend the zoned unit in cases of a higher BMI, or of course personal preference. The three-zone design allows for a firmer area in the middle third of the spring unit. The five-zone design in the Nest Bedding Hybrid Latex allows for a bit more contouring under the hips and shoulders. Some people notice zoning in an innerspring unit – others do not. Being deeper in the mattress, it tends to not influence comfort as much as it can contribute to differences in alignment if needed.
Actually, the Nest does a have a thin piece of quilting polyfoam under the spring unit, but I do not know the thickness, so I didn’t list it. I wouldn’t differentiate between the two items vis-à-vis the base foam as main “difference maker”, IMHO, but the base foam in the Luma will provide a bit more of a “solid” bottom feel. I would also inquire with each manufacturer about slat spacing, as up to 7" between slats would be outside of the 3" maximum that Luma recommends and the 4" maximum that Nest Bedding lists in their warranty.
This is really where you would notice the difference between the two mattresses. The Nest Bedding Hybrid Latex uses Dunlop, which does tend to become “firmer faster” than Talalay at a corresponding ILD. No soft option is available – only medium and firm. The Luma Sleep Hybrid System will have more variations offered, not only in the base mattress choice of Talalay ILD, but also the choice of the topper Talalay ILD. You may select plush, medium or firm. In this situation, you’re choosing between good and good, so it really would come down to your personal preference. Some people have an affinity for Dunlop, others for Talalay. There is more about the difference between Dunlop and Talalay in post #7 here.
There’s a couple different Tuck Mattresses out there, but I think you mean the one that is TryTuck headed by a marketer, advertiser and entrepreneur named Bill Fish. They have a very aggressive affiliate program. His group purchased the name Tuck from two other people who had developed a Tuck mattress (now Doze). The concept is that you fill out an online form and then a configuration is presented to you to order. I’m not completely familiar with the product, but specifications of some of the foams that I have been able to find are 3.5 lb copper/gel memory foam, Dunlop latex, a microcoil unit, various polyfoams at 1.8 lb, and a pocketed spring unit. I haven’t confirmed these specifications, and I don’t have access all of the various designs they offer, so consider this information as limited and confirm any actual specifications with anything you’d be considering. Using memory foam, this could have less of the localized “bounce” that you said you prefer.
Phoenix