First off, to save some of Phoenix’s time, I’d like to point out that i have been reading this site for about a month now, have read nearly every single post related to DYI and mattress ‘theory’ (literally every search hit for terms such as “DYI,” “cover,” “latex”, etc.), read all of the standard posts recommended by Phoenix, such as those related to DYI (e.g., “realistic expectations of success and any cost savings”), PPP, personal value equation, all stickied posts, etc. and going with a DYI construction is what i feel is best given my situation.
To start things off, i would like to mention that i have put together a sharable Google document with every Latex vendor I’ve seen mentioned and/or recommended on this site with their prices and ILD information for what they carry. I did this mainly so i could find which vendors had the best price for the ILD’s and latex type i was interested in. All prices are for 3" thick, full size latex layers unless otherwise stated in the mouse-over-note (the little black triangle in the top-right corner of a cell), if the price is variable based on firmness i used a medium (med-soft to med-firm) layer for the base-price in the spreadsheet. Did i miss any other vendors worth including?
Now for some more personal assistance. I’m looking to build a full-size, 100% latex mattress. Natural vs. synthetic is not a huge concern of mine, neither is organic vs. nonorganic, I’m mainly interested in just building the best quality mattress (in terms of function and longevity) for the least cost possible.
My personal stats:
5’10", 180Lbs
60% side-sleeper, 30% back-sleeper, 10% front-sleeper (mainly because my current mattress has such poor pressure relief I’m forced to sleep on my front sometimes, but it’s not my preference).
Pretty standard male weight distribution and body shape: 42" circumference around shoulders, 34" around waist, 42" around hips; slightly more weight towards my hip/thigh area than my stomach compared to most other men.
I do get shoulder pain often and some numbness in the arm i’m sleeping on (again, mainly because of my current mattress’ poor pressure relief), so I’m probably pretty sensitive to pressure issues.
I don’t seem to be overly sensitive to alignment problems, for example i rarely have lower-back pain despite having a pretty ‘old’ mattress with impressions that throw off my spinal alignment.
I do prefer to sleep slightly ‘in’ a mattress opposed to ‘on’ it.
The only latex mattresses i was able to test locally were the Paramount Nature’s Spa line, specifically Remedy Luxe, Calm Luxe and ‘Something’ Luxe (the firmer version, i forget the name). The firmer version was definitely too ‘firm’ (not enough pressure relief), the medium was very close to ideal (1" of wool over 3" of 17 ILD over an undisclosed core layer), and the soft definitely compromised my alignment (1" of wool over 4" of 17 ILD in the comfort layer i believe). I really wish i had more information about these mattresses but unfortunately Paramount’s website doesn’t have the information and i couldn’t find it anywhere else. So the only information i have is what the guy at the store told me, which wasn’t very much (only the thickness of the comfort layer and the ILD). I emailed Paramount 2 months ago and never heard back from them (no surprise there). Pheonix, do you happen to know anything more about these mattresses?
Based on my stats and what little testing i did get to do, mattress design ‘theory’ would suggest that a ~3" comfort layer would be ideal. I do think i would spend about 80% of my sleeping time on my side if i could get away with it though (i.e., if my mattress had the pressure relief to allow it). So I’m leaning more towards a 3" than a 2" combined comfort layer, and going with a slightly ‘firmer’ comfort layer, such at 19ILD instead of 14ILD, just to be on the safe side (since i haven’t tested a 14 ILD before).
Even though i haven’t tested any of the Pure Latex Bliss mattresses personally, based on what I’ve read here (looking at other peoples’ preferences based on their stats), i feel like a PLB Nutrition would be very close to the design i would need/prefer. So I’m leaning towards 3" 19 ILD over 3" 28 ILD over 3" 36 ILD construction (assuming full talalay latex for these ILD numbers, though i may not go with full talalay, see below). I realize this isn’t identical to the Nutrition, but does this sound like a ‘safe’ design (i.e., “In the zone”) given my stats? Is the 36 ILD layer too firm? Would i be better off with a ~32 ILD?
Now, for the specifics of what i would buy, i have some additional questions. Is there a place where i can buy synthetic, continuous pour, dunlop layers in the higher ILDs at a good price? I can only seem to find these layers in very low ILDs (only 18-22 ILD from Spindle Mattress and 14-32 ILD from Nest Bedding, though Nest Bedding’s Cont. Pour Dunlop is the same price as most vendor’s molded Dunlop). The cost-savings of going with a continuous pour, synthetic dunlop layer is enormous (about 2/3rds the price of even synthetic dunlop made in the traditional mold method, compare Spindle’s 20 ILD layer for $169 to molded synthetic dunlops for ~$220), so i really wanted to use a core layer of synthetic continuous pour dunlop in the ~36 ILD range to save money. So in short, is there a way to get a 3" thick, full size, continuous pour, synthetic, dunlop layer in ~36 ILD for under $200? Perhaps 32.5 ILD would be firm enough actually. What would the equivalent ILD for talalay be for a 32.5 ILD, synthetic, continuous pour dunlop? I’ve seen dunlop ILD converted to an approximate talalaly ILD before, but i don’t think i’ve seen continuous pour converted to talalay, which is why i ask.
Assuming I can’t find a well-priced continuous pour dunlop layer for the support core, i’d probably just go with a blended talalay latex core (38-40 ILD) from Mattresses247 (an ebay seller) for $255 shipped or a NR dunlop core (30-34 ILD, which should ‘feel’ similar in terms of the firmness alone as ~36 ILD talalay) from Brooklyn Bedding for $304 shipped or a blended talalay core (~36 ILD) form Brooklyn Bedding for $324 shipped. I’m somewhat worried that the 38-40 ILD layer from Matresses247 would be too firm, but it is $69 (21%) less than the blended talalay from Brooklyn Bedding. Is there anyway i can make the 38-40 ILD layer ‘work’ by altering other layers slightly to approximate the feel of my proposed design (19-28-36)? Mattress247 also carries 30-32 ILD layers as well for the same price, would 2, 3" layers of 30-32 ILD feel similar to 1, 3" layer of 28 ILD over 1, 3" layer of 36 ILD? Am i correct in assuming that the 30-34 ILD NR dunlop from BB would feel similar to a ~36 ILD talalay layer (since in theory dunlop is ‘firmer’ because of the difference in the compression modulus)?
For the middle/transition layer I’m planning to go with a 100% natural talalaly latex layer (28 ILD) from Select Foam for $309 shipped. This is definitely the cheapest source of 100% natural talalay that I’ve found, but the catch is they only sell one firmness level (28 ILD). Luckily, 28 ILD is perfect for a transition layer. Is this ILD high enough that i won’t notice a slight decrease in longevity for going with a 100% natural layer compared to a blended talalay layer? I’m trying to be sure I eliminate any potential weak-links in my design, which is why i ask.
For the top/comfort layer i’m planning to go with either a synthetic, continuous pour, dunlop layer (18-22 ILD) from Spindle Mattress for $160 shipped OR a blended talalay layer (19 ILD) from Brooklyn Bedding for $324 shipped. How would these two products compare in terms of feel and longevity? Spending twice the money for something that might be very similar is not something i’d be willing to do given my personal valuation equation.
In Summary:
The cheapest option, utilizing a differential construction, would be:
3" synthetic, continuous pour dunlop, 18-22 ILD, from Spindle Mattress for $160
3" blended talalay, 30-32 ILD, from Mattress247 for $255
3" blended talalay, 30-32 ILD, from Mattress247 for $255
Total: $670 shipped
Vs.
The closest replication of the PLB Nutrition, using a progressive construction, with a 3" comfort layer instead of 2":
3" blended talalay, 19 ILD, from Brooklyn Bedding for $324
3" 100% natural talalay, 28 ILD, from Select Foam for $309
3" blended talalay, 36 ILD, from Brooklyn Bedding for $324
Total: $957 shipped, or $793 if i simply swapped the 19 ILD talalay layer for the Spindle layer
As for covers, i do want a stretch-knit cover. Unfortunately, there doesn’t seem to be a lot of options here. The Non Quilted, 4 Way Stretch Zipper Cover from SleepEZ seems to be the only stretchy cover option available that I’ve found. All of the other options from other vendors are quilted or have a non-stretch rayon backing. Am i wrong here? Are there other stretchy cover options? The $49 shipping fee on the SleepEZ cover does push the price up quite a bit, so i’d be looking for something comparable in the 150-220 range. Assuming there’s no other stretchy options other than this SleepEZ model, and assuming i don’t want to spend ~$200 on a cover, would i be making a mistake and/or compromising the useful lifespan of my mattress by going with a ‘cheap’ jacquard velour cover such as this one here? I do plan on putting a very light-weight wool mattress pad over my cover at some point, most likely a product similar to the St. Dormeir offering, so that should also aid in protecting the mattress and might let me get away with using a cheaper cover as well.
I think i’ve covered all my bases for now. Looking forward to your response and i’d also like to take this moment to thank you for all the wonderful work you do here and for providing this terrific resource for free. And on the note, i do plan to donate to your website once i’ve finalized everything; it’s the very least i could do to show my appreciation.