Mattress Forum

I have a custom mattress with a zippered, quilted cover. Inside are layers of talalay latex in firm to extra firm ILDs and one thin layer of HR foam. All over a LuraFlex coil unit encased in HR foam. The mattress is a no-flip. Latex only needs to be turned from head to toe occasionally.

It sits on top of a firm foundation (not box springs.)

So what I did is put a thin layer of less-firm latex foam between the hard foundation and mattress to mimic "another side" to my matttress. Basically, it's like having some cushiness as I would if it were a double-sided mattress.

My question: Does this, in any way, alter the way the mattress "should" feel had I just kept it like it is--the underside "flat" against the firm foundation? In other words, it wouldn't contribute to making my mattress feel less firm in a less supportive manner, would it? Or do you think it's doing simply what I hoped it would---acting like a double-sided mattress of sorts? Just curious!

Actually, it's between the mattress and firm foundation. No springs are in that (foundation). I just figured it would mimic the feel of a two-sided mattress (to a point). In other words, it would just give a bit of cushiness instead of the flat side of the mattress atop a flat, firm foundation. I just wondered if it could contribute to an early-morning lower back ache I sometimes have if I've been sleeping in one position (my back) for a long time. It goes away fairly soon.

My LuraFlex coils are encased in about a 3" block of a high density foam (a border which helps to make it firmer when you sit on the edge.) I realize that means less coils. But since I don't sleep on the very edge, it's fine. I actually prefer the edges not to bend when I sit on them.

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Sorry, I'm with Eagle2: I don't understand what you are asking.
What do you mean "act like a double sided mattress"? I thought the idea of making it double sided was that it would feel the same on both sides so when you flip it, it feels the same, it just keeps it from wearing out as quickly...

See if you can explain better.

If you are asking if putting some foam under your mattress, between the mattress and the springs, causes a change to how it feels, my guess is that it would change how it feels but not affect the support. I think that's what you are asking.

I have at various times tried putting a layer of memory foam on the very bottom of my mattress (but not over the springs; I had no springs) to see if it made it any better. It made it "different" but not necessarily better. When I had that overnightmattress.com M-grade foam with 2" of mem. foam glued to the top, I turned it over and put the mem. foam on the bottom. That worked more or less fine for me, though eventually the whole thing felt too non-supportive.

My question for you is: What do you mean, "HR Foam-encased springs"? How are they encased? How much foam, etc. ? Is this something you did or this is how it came? Never heard of encasing springs. Why would they be encased with foam? The springs I have seen are only encased by the mattress cover material.