We bought a Kingdown 14 years ago (spent around $2500), it was nice and plush. We often need to flip as my wife and I have basically put two dents in it. I am 6’2" 235 lbs and sleep on my sides. My wife is 5’10" 165 lbs and also sleeps on her side.
We went shopping and were close to buying the MySide at Sleepys (I was red and her blue according to their analysis). We also liked the iComfort Renewal Refined but again this was after 15 minutes of laying on each. The MySide started at $4,000 but manager gave me the take it now for $2500 which I didn’t. The iComfort was $3,400.
This is so out of my league of expertise and frustrations are high. Would welcome any suggestions/advice on getting the proper mattress. I don’t mind spending the money if it is top quality and will last. Thanks in advance!
Nest I would read through the overviews that are in the mattresses section of the site.
I wouldn’t “study” these but just absorb enough of them to give you a general sense of your choices and to be able to ak better questions. Once you’ve read them you will know more than many mattress sales people :).
As I mentioned in the guidelines, I would focus on local manufacturing or better sleep stores.
There is a list of these centered on Trenton, NJ in post #4 here and there is another similar list with a couple of other options centered in West Chester in post #2 here that should “cover you” on both sides.
With these choices … you should be able to find a mattress with much better value than either of the options you have listed (which IMO are both overpriced and not very good value).
If you have questions along the way feel free to post them.