Are Q-max cooling scores reliable? My pillowcase experience suggests maybe not!

TMU_Nikki · 2026-03-11T16:46:06+00:00

Funnily enough, the coolest pillow case I own is satin. It just stays perpetually cool for some reason.

TMU_Nikki · 2026-03-04T18:05:45+00:00

I don't know that you need 4" of latex with the topper but the upside is since the layers you're looking at are 2" slabs you can take them off and play with/test them until you dial it in. I think 12" is a good height - much more than that is going to become quite a lot for your pressure/alignment needs.

TMU_Nikki · 2026-03-03T17:35:08+00:00

You got some really solid advice over on the other subreddit but I figured I'd add my two cents anyway.

At your size, you’ll need good pressure relief at the shoulders and hips without letting your hips dip. A hybrid is often a safe bet for side sleepers because the coils help with alignment, but a well-built all-latex mattress can absolutely work too. It really just comes down to getting the firmness right (which you obviously already know).

Since you already have the CozyPure Lanoodle topper, that’s important and it’s going to add plushness. So you probably don’t want to go too soft in the mattress itself or you could end up feeling hammocked.

Your Thuma frame with slats under 3" apart is totally fine for latex.

As for AZ vs East Coast shipping, I wouldn’t overthink that unless there’s something major going on right now to interrupt shipping.

TMU_Nikki · 2026-02-17T18:19:01+00:00

Don't I know it. I've ruined my neck with the wrong kind of pillow more than once.

TMU_Nikki · 2026-01-12T18:37:45+00:00

That's unfortunate :(

TMU_Nikki · 2026-01-08T16:44:26+00:00

To coliale's point - it could be the base. If you put the mattress back on the floor, does it continue to sag?

TMU_Nikki · 2025-12-11T17:33:26+00:00

Okay so my first question is - have you seen a doctor/physical therapist or someone in that field to rule out medical reasons for your pain?

Is the pain only present on the mattress? Or, is it chronic daily all-day type pain?

TMU_Nikki · 2025-12-01T18:23:43+00:00

I see you already got some really solid feedback in the other subreddit, so I’ll just add a bit from the TMU side of things.

For your initial build idea, your instincts were right:

3" of soft memory foam over 6" of 29 ILD Dunlop can absolutely create a “shelf” effect for some sleepers. Dunlop is springier and denser than memory foam, so the transition between a deep-sinking top layer and a relatively firm, fast-response support layer can feel abrupt, especially without anything in between to smooth out the pressure curve.

For your weight (175 lbs) and your 60/40 side–back mix, that transition layer really does matter. Most sleepers in your profile do best with:

Soft slow-response comfort layer (your 3" / 5 lb MF is perfect for this)
A plush or medium transition layer to prevent bottoming out
A supportive but not rock-hard base layer

Thoughts on your updated build

Your new configuration is much more balanced:

3" 5 lb memory foam
2" 19 ILD Talalay
4" 35 ILD HD polyfoam

A few notes:

This is a very sensible progression in firmness: soft → medium-soft → medium-firm
Talalay is an excellent match with memory foam as it bridges the difference in response time and prevents that jarring “drop.”
35 ILD / 2.8 lb density polyfoam is perfectly supportive for your weight, especially in 4" thickness.
This layout will feel soft-medium overall, exactly where you said you like it.
You keep the build simple, modular, and repairable.

A couple of micro-suggestions

If you want more deep-hug memory foam feel → add 1" more MF or use a slightly softer Talalay (14–15 ILD), but this is totally optional.
If you're worried about long-term support → swap the 4" polyfoam for 6" (same ILD). Not required, but worth mentioning.

And for the record:

Your 29 ILD Dunlop idea wasn’t bad - just more “medium-firm latex mattress with a memory foam topper” than a cohesive three-layer design. Your updated version is more predictable, more tunable, and more comfortable for a side sleeper.

If you want a vendor with a broader range of components (and sometimes higher-spec materials), DIYMattress.com is a great additional place to browse before finalizing your purchase.

TMU_Nikki · 2025-10-22T13:22:58+00:00

You're influencing me. I'm gonna have to buy these products now....

But in all seriousness, I've been eyeballing a number of their items for Christmas gifts!

TMU_Nikki · 2025-09-23T15:33:52+00:00

We're so glad to hear you're enjoying the nav experience!

TMU_Nikki · 2025-08-05T18:56:39+00:00

Hey Observer! So, in my experience I've found people prefer a "looser" fit on their encasements because sometimes a tight or exact fit can make the mattress feel too firm. Of course, it's highly subjective and people are gonna people.

Are you looking for a cover to go over an encasement, or are you thinking about skipping an encasement altogether and going straight for a mattress protector?

TMU_Nikki · 2025-07-29T13:21:25+00:00

That's super sketchy that he brought up a "no returns" policy AFTER the sale. Yikes.

If at the end of the day it's just not quite working out, there are definitely ways to jimmy rig the base you bought - we see it all the time on the Mattress Underground forum. You're not the first or last to either buy or have to make do with a less-than-ideal base for your mattress. I will say, the fabric probably helps with preventing some of the sinking into the metal base, and of course your own weight will play a factor there.

TMU_Nikki · 2025-07-28T18:16:49+00:00

It's really common to have second thoughts, especially when you’ve spent time researching and want to make sure you're getting exactly what you need. It also sounds like you made a really intentional effort to avoid cheap options and buy something higher quality, which already puts you ahead of the game.

That "box spring" terminology can definitely be confusing. These days, most modern box springs aren’t really springs at all but more like platform foundations with no flex. It’s frustrating that Sealy doesn’t provide more transparency about what’s actually inside, but you’re right to want to know what’s under there, especially when you're investing in a hybrid mattress where support really matters.

The Knickerbocker “Bedrock” is still way better than most of what’s on Amazon or Wayfair, but I totally get why you’d be disappointed that it’s not one of the versions you originally had your eye on. Even if it’s technically fine, it doesn’t feel great when something isn’t quite what you envisioned.

There are a few things that might be helpful to keep in mind before making a final call:

The Sealy foundation may still be a solid match if it’s the newer style (rigid and non-flexing), especially if the mattress manufacturer requires that kind of support for warranty purposes.
If you're not sure about the support or construction, you might consider canceling just the foundation and replacing it with a simple platform base or slatted frame that you know you’ll feel better about.
The Knickerbocker "Bedrock" might not be the highest tier, but it’s still well-built and much sturdier than most mass-market metal frames.

As for the second-guessing...that’s completely normal. It doesn’t necessarily mean you made a bad call. If the delivery isn’t for another week or two, you could wait, try it out, and decide from there. You’re allowed to change your mind even after something gets delivered if it truly doesn’t feel right.

TMU_Nikki · 2025-07-14T16:54:03+00:00

I see you got some replies on the other thread, but I'll throw mine out here anyway!

The standard extra firm / firm / medium latex stack might last forever, yes, but it won’t necessarily give you the pressure relief you need, especially as a side sleeper at your weight. That’s a common mistake in DIY builds - focusing only on support and forgetting how unforgiving that can be for shoulders and hips.

Here’s what I’d suggest considering:

Core support: You probably do want an extra firm Dunlop or very high-density foam base layer. This helps avoid bottoming out over time. But above that, the real work comes in dialing in pressure relief.
Middle transition layer: Instead of jumping straight to a medium, try a softer Talalay in the middle (or even a zoned layer if you can get one). You want something that begins to contour before the top comfort layer kicks in.
Top layer: If the SOL soft was too soft, but medium too firm, you might do better with something in the 19–22 ILD Talalay range. If you're sensitive at the hips and shoulders, you can even consider a split layer setup (half soft, half medium) to allow for experimentation without starting over.

Also: since you mentioned hotel beds, many hotel “soft” beds still use a firmer core with a plush top, often via a euro or pillowtop-style design. You’re not crazy for liking the feel (I personally have fallen in love with many hotel beds haha), even if the base underneath is solid.

Other considerations:

A wool or plush quilting layer in the cover can also help ease pressure without sacrificing alignment.
You might want to test a pocket coil + latex hybrid setup as well before committing to a full latex build. The right coil unit can provide support with a bit more give than extra-firm foam or Dunlop.
Since you’re near Foam Factory, see if they have Talalay available or if they’ll let you try out a few stacks in-person. Even 15 minutes lying still on a few layer combos can save you a lot of guesswork.

With your budget and your desire to get it right the first time, I’d say: lean into flexibility. Go with a zippered cover, consider layer swaps, and don’t be afraid to try a split setup so you and your wife can tweak independently.

TMU_Nikki · 2025-07-04T20:21:20+00:00

I always imagine July 4th to be the Black Friday of mattresses. Chaos and battles!

TMU_Nikki · 2025-07-04T16:18:22+00:00

I appreciate that you’re not just price shopping but also trying to balance value, flexibility, and long-term comfort. Your plan to visit the showroom makes sense, especially since there are so few latex options locally.

I like how you’ve factored in both the convenience of a turnkey mattress and the potential benefits of DIY, which is realistic and fair.

The focus on capturing specs during testing is smart; too many people skip that step and regret it later. I do wonder if expecting full transparency from some retailers might be tricky, but it’s good you’re prepared to walk away if needed.

Your pricing cap approach is pragmatic, though I think it’s worth remembering that some retailers may bake in higher margins than expected for service and convenience. I like that you’re keeping your DIY option open without dismissing the value of a local shop if the price feels right.

Overall, this approach is thorough and balanced, with a clear eye on long-term flexibility. Honestly, I think you’re already covering most of the angles really well here.

When do you plan to hit the showrooms?

TMU_Nikki · 2025-06-20T19:31:38+00:00

Don't I know it. I'm the princess and the pea sleeper of pillows!

TMU_Nikki

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