Mattress Search

I am on the hunt for a new mattress. I'm 5'10" and weigh 160lbs. I sleep primarily on my side and tend to sleep a little hot. I also suffer from sciatica. I trialed the amerisleep as2 hybrid and that ended up being way too firm and had major issues with neck and shoulder pain. I returned that and got the Bear Elite Hybrid in soft. I've been using that for about a month and half and my sciatica is returning so unfortunately I think it is too soft even though I find the top to not be as conforming as I'd like. I gave up for a bit on the online shopping and went to mattress firm and there I laid on a Beautyrest Pressure Smart 2.0 Medium Hybrid 13' and I felt like that had what I was looking for...conforming on top, awesome pressure relief, but still supportive enough that I didn't sink in too much. My biggest concern though is upon looking up reviews it seems like problems with sagging and durability have been an issue with their pressure smart line in the past and I really want a mattress that will last me at least 10 years. Would you all recommend the beauty rest pressure smart 2.0 hybrid medium queen mattress or do you have any mattresses that you would recommend that are similar to this, but more durable? If possible I'd like to spend no more than $2000. Thank you for your help.

Laura