Hi pennies,
Thanks for taking the time to share an update … I appreciate it.
Spinal alignment is the most important factor in your body’s ability to rest and recover over the course of the night so it’s good news that you are waking up without any back pain.
There will be a break in and adjustment period for any new mattress or sleeping system as the mattress loses any of it’s “false firmness” and the cover stretches and loosens a little and the materials settle and your body gets used to a sleeping surface that is different from what it is used to (see post #3 here). This would typically be a few weeks but it can be shorter or longer depending on the specifics of the person and the mattress (higher density materials like latex can take longer) and it can be surprising to many people how much their sleeping experience can change over the course of the first month or so.
While I can’t feel what you feel so I can’t know for certain … if I had to I would probably guess that your mattress may be a little too firm.
I’m looking forward to finding out how the extra topper works out for you.
When you sleep on a new mattress you will generally sink into it either more or less than your old mattress so it’s not unusual to need a new pillow with a different profile as well. A suitable pillow is an essential part of good alignment for the head and neck and upper body because the gap between the head and the mattress and the curve of the cervical spine needs to be supported just like all other parts of the spine. Like mattresses … there are certain “needs” that depend on body type and sleeping positions but with pillows, personal preferences play a more important role because the face is much more sensitive to textures, temperature, smells, and other more subjective “feel” based properties of a pillow. There is more about choosing pillows in the pillow thread here.
Better sleep shops will often have samples of their pillows available for you to try (they should be in a pillowcase and not a plastic wrapping) so you can try different types of pillows and pillow materials in person and use your own personal experience rather than just “theory” to help you decide on the types of pillows and pillow stuffing you tend to prefer.
Phoenix