Hi - I'm Meghan.  I'm new!   Just bought a new Select-a-Firmness split king mattress (in soft) from Overstock.  Yes, I know Overstock mattresses are not returnable, etc., etc., but so far I am very happy with the mattress.  Since we wanted to do the adjustable bases, too, Tempurpedics were way beyond our price range and Costco return doesn't do me a lot of good since we live in BFE and there are no stores within a 400 mile radius.    This brand of split King mattresses were $600 (for both!!) and after doing a lot of research on this site and beyond, I decided to take a risk and go with this mattress.   The price was too good to pass up.  It also gives us a chance to really try out memory foam to really decide if we like it.  Even if this mattress fails in a few years, the price will still have been worth it for a "trial."  So far I cannot complain.  The mattress is amazing.   Even the soft is *very* firm, though, so if you're thinking about this mattress, read the reviews before you order a medium or firm firmness level.  I like a firm mattress, and "soft" is firm in this mattress.  We also bought 2 twin xls Ergomotion adjustable bases at the same time (also from Overstock) and saved almost $500 buying them from the website rather than the local dealer (both adjustable bases were around $1475, no tax, free shipping).

This brings me to my question.  We bought some waterproof mattress protectors at the same time and I am not too happy with the way they feel.  I like the memory foam a lot better without them on.   However, I have 3 small children and, while they don't sleep with us, I don't trust them not to have some sort of incident where they sneak a drink in while watching TV in there or the youngest has a diaper leaking incident.

I have been reading a lot on these forums and see that people really like the St. Dormier mattress protectors, but I am balking at the price and wondering whether that would really be the right thing for us since they are not truly waterproof.  Thoughts/ideas?

The mattress protectors we have right now are the "Tuff Guard" ones and they seem very similar to the Tempurpedic mattress protectors or the Protectabed ones - a very thing "breathable" layer (doesn't seem so breathable to me) with a thin polyurethane layer.  I can always move them to the kids' beds if they don't work out for us.