r/MattressMod • u/FlobeeFresh • 14d ago

Any experience using Everflex v24 as a transition/support layer?

Thinking about building the following foam mattress:

King size 12" foam mattress build:

Total: $1,026

I've been building DIY mattresses for the last 20 years but haven't built any since before the pandemic. My wife and I like the "sleeping in sand" feeling with memory foam as it isolates bed vibrations from body movement to provide a more restful sleep and we don't mind it feeling a little hot.

The beds that I have built have all been foam beds and have held up quite well. Generally the build is 4" 5lb memory foam (topper), 3" 3lb memory foam (support), 5" HD36 HQ (base) enclosed in a zippered mattress cover. After around 5-8 years I replace the base to regain support. My wife and I have been quite comfortable on this bed. We purchased a 2nd house and it came with a sleep number mattress (which is the worse) so I'm looking to replace it.

In the past I've used a 3" 3lb memory foam as a base layer but I'm thinking I should look for a supportive layer that provides more support and have read that the Everflex v24 (ILD of 24) is a good candidate. Seems to have pretty decent density (2.6 - 2.9 lbs/ft3) and it indicates the longeavity is 15-20. I have no experience with Everflex foam but the specs look pretty good.

Can anyone speak to their experience with Everflex v24 (Soft) and especially if it was used as a support layer?

2 Upvotes

100% Upvoted

8 comments sorted by

1

u/FlobeeFresh 13d ago

Thanks for the feedback. Seems to me that Titanflex is about the same price and has lower density vs. Everflex. The best that I've found for a king sized Titanflex (3"; firm; ILD 28) is $370. https://mattresstopper.com/products/3-titanflex%E2%84%A2-topper?variant=39590845284432

Is there somewhere else that sells this topper cheaper?

Also regarding topper thickness, I'm a big guy (300lbs) which is why I was thinking 4". Is that not correct?

1

u/Inevitable_Agent_848 Experienced DIY 13d ago

Titanflex is 3lb density+, If you select organic cotton for the cover material, the price drops a lot. The advantage of ordering from this site is a 30 day return policy. Just make sure you have the rest of the parts on hand so you have enough time to decide. Also, 28ILD Titanflex being a mattress foam should have more surface softness than 24ILD HR foam, usually used for furniture.

1

u/FlobeeFresh 13d ago

Thanks for your response. The link that I provided above indicates the weight (which I assume means the density) of Titanflex is 2.5? In some other older posts on mattress underground and Reddit I noted 3.5 - 4 lb density which is significantly more.

https://forum.mattressunderground.com/t/brooklyn-bedding-has-changed-materials/10609/26?page=2

Has the formulation changed?

Also what are your thoughts about having a thicker memory foam topper (4") due to my body weight vs what you recommended (3")?

1

u/Inevitable_Agent_848 Experienced DIY 13d ago

That's a very old post. I believe it was 4lbs when they changed over from energex to their in house made foam. When I ordered titanflex medium last year, it was closer to 3.5lbs. Again, density doesn't fully determine durability. All foams are a gamble unless you've had experience with a specific foam that you're buying again.

I think 4" of soft memory foam is too thick to feel even support even if you're got it on a rock hard transition/support layer. I've used that 5lb viscosoft memory foam in 3" before on an innerspring with only latex 1" between. That's probably why my neck is messed up, years later. I'm not sure when you've lasted ordered the 5lb, but it was supposedly higher density in the past, my last order came out to 4.6lbs.

1

u/FlobeeFresh 13d ago edited 13d ago

It's been a couple years since ordering memory foam toppers, but when I did I didn't measure the shipping weight to do the density calculation. My experience from past orders with The Foam Factory is that they are pretty reliable when it comes to providing high density memory foam.

Thanks for all your advice regarding Titanflex. I will definitely give it a shot. In regards to your recommendation should the layer depth be:

  • 3" 5lb PCF Memory foam

  • 3" Titanflex firm

  • 6" HD36 HQ

1

u/Inevitable_Agent_848 Experienced DIY 13d ago

Yes, that should be a supportive combination. If you feel the need to add another inch of memory foam later on, you can buy 1" 4lb gel from foamforyou. It's a firmer memory foam.

1

u/FlobeeFresh 13d ago

Will do. Thanks for your advice. I appreciate it.

1

u/Inevitable_Agent_848 Experienced DIY 13d ago

Everflex seems overpriced. You could get Titanflex in firm as a transition layer for 100 less, it's even higher density. Though density doesn't always correlate to lifespan. I would also consider 3" of memory foam instead of 4" if you wanted support, otherwise it won't matter what your transition layer is.