PU/Latex/Memory Foam Mattress
Oct 28, 2007 7:19 PM
Joined: Oct 28, 2007
Points: 69
Has anyone put together a mattress with PU base, latex in the middle, and memory foam on top? I was laying on a Simmons ComforPedic the other day with this configuration. It felt like Temperpedic support laying in it, but it didn’t have that hard feel when you roll over or sit on it – it actually had a little spring to it. When I was looking at it in a showroom, I was able to see some of the specs on the sheet the sales person was holding:

    Top layer: 4.5” 5.5lb memory foam – ILD unknown, but possibly 2 different foam ILDs (springs back faster than Temperpedic)
    Middle layer: 2" 24 ILD latex (said it was to dissipate heat)
    Bottom: 7" 30 ILD foam (I'm assuming it's PU, but I'm not sure???)

From what I've been reading about foam lately, I thought a combination like this would be too soft, but it was really supportive. After laying in it for awhile, it did seem a lot cooler and more comfortable than a Temperpedic. The price for the above configuration was $4200. Any ideas on putting one together for a lot cheaper?

Re: PU/Latex/Memory Foam Mattress
Reply #75 Nov 19, 2007 7:23 PM
Location: Mequon, WI
Joined: Aug 30, 2007
Points: 363
steve2u wrote:
I'm not sure what the recommended gap between the slats is. Any ideas?


I used 1.5" for slat spacing between slats, and it works great. 
Re: PU/Latex/Memory Foam Mattress
Reply #76 Nov 27, 2007 10:42 AM
Joined: Oct 28, 2007
Points: 69
Error
This message was modified Nov 27, 2007 by steve2u
Re: PU/Latex/Memory Foam Mattress
Reply #77 Nov 27, 2007 10:58 AM
Joined: Oct 28, 2007
Points: 69
Update:

I received my foam from FBM and it was the correct density - it's sad that I'm surprised at this. The foundation construction is going a little slower than expected, but they should be pretty strong. Here's a link to a few pictures: http://www.visi.com/~stevet/bed.html

I'm still thinking about returning my Sensus topper. I noticed this morning that the spot where I slept throughout the night was like Jello an hour after I got out of bed. The edges of the bed were much more firm. I think that the Sensus topper may be too sensitive to heat for me - it just doesn't seem like it could offer adequate support when it's that soft.
This message was modified Nov 27, 2007 by steve2u
Re: PU/Latex/Memory Foam Mattress
Reply #78 Nov 27, 2007 2:05 PM
Joined: Oct 28, 2007
Points: 69
How would 3" of FBM 32 ILD latex compare to my 3" Sensus topper? It sounds like latex is generally softer than poly at the same ILD. I'm a little gun shy about going too soft now. I rather be on the firm side and add soft poly or something else on top of the latex if needed. I may even try sleeping on my 36 ILD poly with a comforter under me (for a little extra softness) for a few days. This may be a little bit hard for side sleeping, but I seem to keep waking up on my stomach with the Senus topper for some reason, so it probably won't matter.
Re: PU/Latex/Memory Foam Mattress
Reply #79 Nov 27, 2007 2:17 PM
Joined: Oct 28, 2007
Points: 69
A couple of my recent posts were not viewable unless you hit "all" to view the entire thread. Sorry if there's repeats in your browser, but here they are again:

Update:

I received my foam from FBM and it was the correct density - it's sad that I'm surprised at this. The foundation construction is going a little slower than expected, but they should be pretty strong. Here's a link to a few pictures: http://www.visi.com/~stevet/bed.html

I'm still thinking about returning my Sensus topper. I noticed this morning that the spot where I slept throughout the night was like Jello an hour after I got out of bed. The edges of the bed were much more firm. I think that the Sensus topper may be too sensitive to heat for me - it just doesn't seem like it could offer adequate support when it's that soft.

How would 3" of FBM 32 ILD latex compare to my 3" Sensus topper? It sounds like latex is generally softer than poly at the same ILD. I'm a little gun shy about going too soft now. I rather be on the firm side and add soft poly or something else on top of the latex if needed. I may even try sleeping on my 36 ILD poly with a comforter under me (for a little extra softness) for a few days. This may be a little bit hard for side sleeping, but I seem to keep waking up on my stomach with the Sensus topper for some reason, so it probably won't matter.
Re: PU/Latex/Memory Foam Mattress
Reply #80 Nov 27, 2007 4:30 PM
Joined: Nov 27, 2007
Points: 4
Fascinating thread this has been, Steve...

So, I've been thinking about the following:

2" Foamex Venus
3" FBM Talalay 20ILD
3" FBM HD36 HQ
3" FBM LUX HQ

I wonder if it will be firm enough... I'm 180lbs 5'8" with back and neck probs...
I do side sleep at times, so softness is key...

Any advice?

TIA...

-Jay
Re: PU/Latex/Memory Foam Mattress
Reply #81 Nov 27, 2007 5:51 PM
Location: Mequon, WI
Joined: Aug 30, 2007
Points: 363
steve2u wrote:
I'm still thinking about returning my Sensus topper. I noticed this morning that the spot where I slept throughout the night was like Jello an hour after I got out of bed. The edges of the bed were much more firm. I think that the Sensus topper may be too sensitive to heat for me - it just doesn't seem like it could offer adequate support when it's that soft.


Sensus was not designed to provide support, it was designed as a comfort layer.  You don't want to go too thick with your comfort layers unless you have fibromyalgia or something like that.

32 ILD latex will be MUCH firmer than the Sensus.  A whole different feel, not even in the same ballpark.  I don't know if that will be good or bad for you.  32 ILD latex is generally not considered a pure comfort layer.

Re: PU/Latex/Memory Foam Mattress
Reply #82 Nov 27, 2007 6:19 PM
Foam Nerd
Location: USA
Joined: Aug 30, 2007
Points: 605
I had a 2" ILD 32 latex topper from FBM. I was using it under something else, not as a topmost comfort layer, and I still found it to be too firm for side sleeping. I was "afraid" to go all the way to 2" of ILD 20 so I compromised on 1" of 20 and 1" of 32. Still too firm so now I have 2" of the softest latex I can find on order.

Moral: this forum is very much of the firmer is better persuasion, and for the support layer I agree (up to a point anyway), but for me this does not extend to the comfort layers. I would have been perfectly happy with any of my configurations if I slept on my back, but for side sleeping it was very easy to go too firm.

Re: PU/Latex/Memory Foam Mattress
Reply #83 Nov 27, 2007 6:32 PM
Joined: Sep 3, 2007
Points: 167
Steve, I would recommend 2" of Isoform. It isn't supposed to be as soft as Sensus, and is supposed to be cooler. But you may be one who cannot sleep on memo foam at all. You could try a 1.5" to 2" eggcrate PU topper on your current base foam. They are pretty cheap and could be discarded every other year. Two inches of 20ILD latex may work for you, but I have to agree that 32 seems too hard on top of your pretty firm PU. How firm does that  50ILD LUX feel, any way?
Re: PU/Latex/Memory Foam Mattress
Reply #84 Nov 28, 2007 11:42 AM
Joined: Oct 28, 2007
Points: 69
donw wrote:
How firm does that  50ILD LUX feel, any way?

The LUX is very firm, but seems like the right idea for the bottom layer. You don't sink in much at all laying directly on it. The 36 ILD is still pretty firm, but allows you to sink in a little.

I never did receive my Isoform sample. Maybe 2" of 32 ILD latex under 2" of soft poly or 2" of 20 ILD latex would be better for me?

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