Trying to nail my DIY hybrid build as close as possible on the first go, but have some questions before making some purchases.
If the slat spacing on my frame (KD nomad) are 2.8” wide, is it a good idea to get a piece of 1/2” or 1” thick HD foam under the coils so the coils don’t sag into the gaps between slats?
I’m thinking of getting the combo from pocket coil store with the 15.5g quad 8” and the 3” quad minis with the cover.
Would it be a bad idea to get the cover for just the coils so that way I’m not locked into any comfort layer configuration in terms of height?
Or would the cover in between layers affect the feeling of the quad mini not being directly in contact with my comfort foam of choice?
I was initially thinking of just getting the 14” cover with the combo for a bottom to top build of : 1” Lux HD foam, 8” quad coils, 3” mini quad, and 2” soft or medium latex.
After I thought it over I realized I’d be stuck with a 2” layer on top of the coil combo. Although that is what TPS recommends, I’d like the flexibility for modification, but not at the risk of changing the feel of the setup in a negative way.
Hoping someone has some insight so I can pull the trigger on some components!
Welcome to our Mattress Forum I see no one has replied to this yet, so I thought I’d throw my 2 cents in as someone who has seen a fair few DIY builds.
First off your KD Nomad frame with 2.8" slat gaps is borderline. Technically, that’s within what a lot of manufacturers consider “okay,” but with coils (especially taller ones like the 8" QuadCoil), I’d personally play it safe. Adding a 1/2" or 1" layer of high-density foam or a thin coir pad underneath can help prevent the coils from sinking into those gaps over time. It also quiets things down a bit, which is a nice bonus.
As for the cover…you’re right to think twice before locking yourself into a setup. If you get the full-height cover (14"), it’ll force you into keeping that general height with all layers stuffed inside. That’s fine if you’re committed to that configuration, but if you’re the kind of person who likes to tweak (which, let’s be honest, most of DIY folks are), it can limit you.
You can order just the pocket coil cover and then build the rest as you please, stacking layers on top with their own encasements or loose, but here’s the tricky part: covers do affect feel. A tight cover around the Quad Mini + comfort foam will “bind” the layers together slightly and can firm things up a bit or dampen subtle differences in feel between layers. Having the Quad Mini free-floating under your comfort foam will likely feel slightly plusher, but you may get more shifting or “slide” over time if you don’t secure things.
If it were me, I’d lean toward starting with just the coils in their cover plus your planned layers loose on top, that keeps you flexible. You can always buy a full encasement later if you settle on your perfect combo and want to button it up.
All that said - what did you ultimately end up doing?
I see no one has replied to this yet, so I thought I’d throw my 2 cents in as someone who has seen a fair few DIY builds.