I am looking for a new mattress and wondered if anyone has experience with the two I am seriously considering: the Englander Biltmore Bamboo and the PureFit or PureRelax memory foam mattresses from Relax the back. I have a back problem (two herniated lumbar discs) and have chronic back pain issues. Which would be a better fit for me?

Any recommendations (even for other mattresses) are welcomed. I am very confused about what to buy and don't want to make an expensive mistake. Thanks! :)

Just make sure wherever you buy, they have a solid return policy.  30 day return policies are not cool (i.e. Sears).  90 day periods are much more tolerable.  Just in case.

I don't know how you sleep, but adjustable bases can be good for back sleepers.  To get your feet and torso up a little takes a load off a back.

I've had 4 days on a Tempurpedic Cloud.  It's supportive, soft and pressure relieving.  4 days is far too early to really know it., but good so far.