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!!