Hi, I have some miscellaneous questions that I can’t seem to find answers too and would appreciate a professionals insight.
I have a low bmi, am 5,5 and weigh 58kgs. I was considering a 5" Dunlop latex mattress labelled as medium firmness. (75kgm/^3) Supreme 12.5 Organic Latex Mattress NZ | Natural Beds Having tried this mattress it “felt” decent but I’m wondering if there are any problems with a mattress that has no distinct layers?
This is a similar Dunlop latex mattress Certified and Natural Latex Mattress | Peace Lily The core is rebonded latex with a firmness of D80 and the two other layers are D65 and D75. I’m wondering if there is a statistical estimate in how much the latex firmness will decrease over time? e.g D65 on day 1 → D60 5 years later.
In a two sided mattress to what degree does the unused side on the bottom face compression?
I’ve read somewhere that rebonded latex is firmer than non-rebonded, but this is generally speaking right? I should trust that rebonded D80 latex should feel the same as other D80, with all other factors equal? Also how would the properties of rebonded latex differ if at all?
Assuming all other factors are equal, latex that is D85 firmess should equal 85kg/m^3?
I’ll try to answer some of these miscellaneous questions for you and maybe some other forum members will chime in with thoughts as well.
Not in particular, no. At a heavier weight, definitely yes. Heavier sleepers, especially side sleepers, really benefit from transitional layers with varying firmness/ILDs of their foams because they need to maintain alignment as they sink into the layers (but without sacrificing comfort). I have found that the common complain among light-weight sleepers is that they need a softer top/comfort layer to adequately sink…but whether or not there is progressive construction within the mattress is less of a concern.
This is a cool question and I wish I had a cool answer. Truthfully, it varies based on weight, sleeping position, the climate, activities on the mattress, etc. I’m unsure what the “base” estimate would be (i.e. how much the firmness would decrease based on testing a certain factor). I’m not sure that’s been studied, However, latex beds tend to “live” 15 to 20 years.
Enough that it requires regular flipping to avoid damaging any single side of the mattress.
My understanding is that rebonded latex uses shredded latex as opposed to latex foam as its “origin” source, so I think it would differ in feel in terms of how deeply you sink into the layer since it likely loses some of that bounce/aeration (but I’ve never done a side by side comparison).
I am looking at buy a cheaper single latex mattress for the spare bed and a more expensive super king/california king latex mattress and bed frame.
For the single bed I’m thinking of buying a 7.5cm - 10cm latex mattress from aliexpress. eg. https://www.aliexpress.com/item/1005006303584992.html Cost is about 190x90cm - 5cm latex = $405 NZD, 7.5 cm = $480 NZD, 10cm = $570. Then maybe adding a peacelilly plush latex topper if required. The single bed is a trundler so I need a thin mattress.
For our bed I was looking at Peacelilly pure latex mattress +/- plush topper and for the bed base looking at ecosa zen bed.
