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 #69 Nov 15, 2007 3:18 PM
Joined: Oct 28, 2007
Points: 69
I just emailed Isoform and they replied within 5 minutes and said they would send me a sample along with information. They said the ILD is 15-17 and the Density is 5.5 lbs.
Re: PU/Latex/Memory Foam Mattress
Reply #70 Nov 15, 2007 5:04 PM
Joined: Sep 10, 2007
Points: 690
I'm with you on the split support layers and full comfort layers, and for the same reasons you gave. I really like having the flexibility to switch around configurations individually if needed. And, as you mentioned, once it's all "tied together" so to speak, and especially with the full topper(s), you'd never know the difference. And, so much easier to handle. Latex, in particular is so heavy. I can't imagine trying to work with King size layers. Plus, they're more apt to tear.


haysdb wrote:
I am a fan of split support layers and full size comfort layers. It makes the foam pieces vastly easier to manage and allows for different configurations left and right. If the foam pieces are placed inside a zippered cover, the pieces will be held sightly together and you will never know it's not one solid piece when laying on it so long as the top 3" or so is a full-size piece.
Re: PU/Latex/Memory Foam Mattress
Reply #71 Nov 15, 2007 5:40 PM
Location: Mequon, WI
Joined: Aug 30, 2007
Points: 363
steve2u wrote:
Well, I have 2 nights on a 3" Sensus topper - it seems to be a little softer than I thought, but it is on my plush no flip mattress that I flipped to make it a significantly firmer, but still probably not firm enough. I did try it on the normal side of my hammocking mattress and I thought I was going to disappear in the abyss. I'm 175 lbs. and my girlfriend is about 125 lbs. - she was sinking too...I was able to save her in time though. I think it will be better once I get new support foam. I hope I won't have to return it for 2" Sensus (or maybe Aerus) and 2" medium firm latex.


Sensus really works best on a relatively firm and flat surface.  At least from my experience.
Re: PU/Latex/Memory Foam Mattress
Reply #72 Nov 19, 2007 10:03 AM
Joined: Oct 28, 2007
Points: 69
Well, I decided to put my new Makita 12" compound sliding miter saw to good use this weekend and build my own mattress foundations. I basically used 1x4's laying flat for the framing around the top and bottom where the slats will rest and the foundation sits on the bed frame. I spaced 2x4's at 12" between the 1x4's and will wrap the sides in 1/2" OSB. I figure my total cost will be around $75 by the time I'm done...depending on the price of the fabric to wrap around them. I'm planning on using 4x1's for the slats (actual size is 3.5 x .75) - but I'm not sure what the recommended gap between the slats is. Any ideas?

I placed an order at Foam Factory Thursday for 4" LUX and 3" HD36, but I still haven't received a ship notification. I did email them on Saturday to let me know when it will ship and to make sure they ship the high density. I will be sure to weigh them when (or if) I get them.
Re: PU/Latex/Memory Foam Mattress
Reply #73 Nov 19, 2007 10:11 AM
Foam Nerd
Location: USA
Joined: Aug 30, 2007
Points: 605
FBM doesn't send any communications. Not order confirmations, not shipping notices, nothing.
Re: PU/Latex/Memory Foam Mattress
Reply #74 Nov 19, 2007 10:16 AM
Joined: Oct 28, 2007
Points: 69
Hmmmmm... I think I'll keep emailing then.
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.

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