[Zeke]

Did a quick search and didn't see anything — coulda missed it.

Anyway, we have a Sleep Number bed 2nd from the most whiz bang model they sell (up-sell, actually). It's time to renew the memory foam part sandwiched in between the air bladders and the soft, breathable top. The factory installs a 2 inch typical blue memory foam and I think after the 10 years we've had the bed that advances have been made in foams.

Am I correct in believing this? So, I believe I can get a 3" foam layer inside the zippered enclosure. I have purchased this type of thing before at Costco but they have a lot more to offer online rather than in the aisle.

Any thoughts on what is the best option? A couple of notes: it doesn't need it's own cover as it goes into a covered assembly, and the breathable layer negates the common complaint about MF being hot to sleep on. So those are non factors.