Well, i can't seem to get some of my questions answered, and i'm probably posting too much as a result!

Anyway, here are some of my questions:

1) will two twin foam mattresses (HR foam) pushed together, in the same mattress cover, reduce--considerably--motion transfer as opposed to a king-size foam mattress? What is the ideal setup for two people who want to sleep together but can't tolerate motion?

2) What should i get as my base--HR36-hq or LUX-hq? 6 inches or more? We're mostly side sleepers, boyfriend likes more firmness than i do, but doesn't really care.

3) Should i get super-soft foam or egg-crate as a topper? 2 inches or less?

4) Why can't i have different toppers for our (hypothetically separate twin) mattresses, if i can get different bases?

5) is 2.8 density HR foam the same in two different stores, or can they be very different?

5) Lastly, a salesman at Verlo told me that Latex can be bouncy, but doesn't have motion transfer. Are the two qualities (bounciness, no motion) compatible? I would think one would eliminate the other!

Thank you SO much for any advice/recommendations!!

Yes, i believe she said that "the density of foam changes with the thickness". Is that what you mean?

Thinking now about about a 4" LUX-HQ layer, with 2" HD36-HQ on top, and 2-3" of softening layers on top of that (egg crate, super-soft foam, something like that). How does that sound for a start? Too much base/mid layers?

thanks!

Don't forget that standard twin mattresses are 5" shorter than king mattresses.  If you want to use two twins to make a king you need to use extra long twins.

i know--learned that the hard way!

I think we'll stick with one king...From what i can tell, the motion won't be considerably resolved with two twin mattresses (DIY foam layers) in a king frame.

electracat wrote:
Yes, that is what I meant.

I think your plan sounds like it could work.  I have never slept on the LUX-HQ or HD36-HQ before, so I can't comment on the feel of them.  However I can say that 6" of base and 2-3" of cush is a workable idea in general.

Would that set-up work if i'm a side sleeper? Just concerned about 'sinking' through the layers on top, onto the hard base layer.

I think so, but I can't say for sure.

Would it be advisable to get two twin sizes of every layer, instead of king size, for 1) ease of moving around layers and 2) reducing motion transfer?

I think so.  If you wanted you could get the top layer to be king sized and everything under that layer twin long.  Large foam layers are hard to move around.  High quality foam is amazingly heavy.

Thanks, MequonJim, for your help! I'll probably have more questions along the way... ;)

Ok, another question about split king:

If i were to split the core of my pu foam mattress, does this really reduce motion? Seems that if the foam x-tra long twins are right next to each other, sharing a cover, there wouldn't be much separation...

But maybe I'm wrong?

Thanks for any response...:)