I purchased a AUP mattress 6 years ago. For the moat part I have loved it, but the level of comfort has deminished and is to the point that I need to do something about it. I have flipped and rotated the core and topper over the years and it has helped, but it’s to the point where it doesn’t last very long anymore. Should I just buy a new core layer and swap it out? I’m 5’10" 215, side sleeper. My 6" core is the soft rated 28 ILD.
Thanks
I think the biggest issue is you are a little too heavy for a #28 core. You should be on a #32 to get the durability you need. What is the comfort layer?
The comfort layer i have is 2" ILD 21. I have both a 28 and a 33 ILD core for my king bed, I got both originally to try them out, I wasn’t sure which I would be most comfortable with. I have tried the 33 for up to a week at a time, but it is too firm for me so I have mostly used the 28 for the past 6 years.
So maybe I just live with the reality that I need buy a new core every 4-5 years to keep comfortable? I suppose it’s better than a whole new mattress. Or I loose some lbs, that would of corse be good too 
That is usually what I tell someone who insist on the extra comfort of the softer core. Don’t sacrifice comfort for durability. The better thing to do is go with the firmer core but increase the comfort layer from 2" to 3". That way you still have that soft feeling on top but the firmer core will hold up much longer and you only need to replace the 3" every five years instead of the whole core.
Now I kind of want to try the 3" comfort layer idea, but that would end being more $ for me now because I would also need to get a new 9" cover for it to fit a 6" core and, 3" topper, vs my current 8" cover, the two of those end up a few 100 more than just a new soft twin XL core. Maybe I’ll try that idea next time around. Thanks for the help
No problem, let me know if you need anything else.