Basil- Yes, I love my TN mattress now. No pressure point pain for me (common on a lot of mattresses for me), I can sleep on my back without a pillow under my knees (unusual for me) and sleep on my back longer than other mattresses, and this is the first time in about 20 years I haven’t woken up with a bit of stiffness in the morning. I rarely wake up at all at night anymore, also unusual for me.
The first week, I wasn’t too sure about the TN- it was better than what we had previously, but that first week I did have some scapular pain, and wasn’t used to the “floating” feel on the mattress. I had no pressure point pain, nor lower back pain, but was still waking up a few times a night just because the experience on this mattress was so different than what I was used to.
Just at the end of the first week, I was starting to sort of get used to the mattress, then we changed foundations from a flexible slat foundation to a non-flexing knock down foundation. The mattress got firmer, and I wasn’t entirely happy about that. After a few nights though, the firmness didn’t bother me. You may be right that our foundation may have a bit more “give” even though the actual wood slats do not flex like our old foundation in which the slats were designed to flex.
At about the third week, I’d say, I started to notice that I was sleeping more through the night. The mattress was still different than I had before- I don’t feel “cuddled” on this mattress like previous pillow tops that I like. Our last mattress was a brick, but did have a 1" soft latex topper, 1" polyfoam topper, and a thick fluffy mattress pad- even though the support layer was too firm for me, and the comfort layer not thick enough, that extra “stuff” on top at least made me feel “cuddled” and reduced my pressure point pain, but I still had back pain and stiffness in the morning.
About the fourth week, I started to like the mattress more.
By about the 5th week, I was very satisfied, and came to realize how much I love my mattress! I’ve never felt this happy about a mattress before. I can’t believe the amount of money I’ve spent on x-rays, physical therapy, acupuncture, etc, and now realize, my chronic back pain must have been caused by my prior mattresses! I do have some physical problems, back disk problems as well as fibromyalgia (which is characterized by muscle and joint pain), but since getting the TN, I haven’t had a back pain flair up and I’ve had far fewer fibroymalgia flair ups, which I suspect is because I’m sleeping more soundly. I have not woken up stiff, except maybe did on the first week with that scapular pain, I honestly don’t remember.
I imagine some people adapt quicker (they are probably younger with no structural issues!) and some people never adapt. I don’t know at what point that call comes- although Phoenix says to give your body a few weeks to adjust to a new mattress, and also it takes that amount of time for the mattress to break in.
Hope this helps a little. Are you sleeping at all better? Do you still have back pain? I think it’s been about a week for you on the mattress?