Hi JW,
Thanks for your comments and feedback. A few things I’d like to add to your notes:
Motion transfer definitely has much to do with the products upon which any mattress is placed. Standard metal bedframes contribute to motion transfer issues, as does placing a mattress upon a true coil box spring or torsion modular system. The more solid the base under a mattress, the better the minimization of partner disturbance. One thing to note is that most foam mattress (and innerspring) manufacturers do not recommend placing their products upon anything but a firm, solid and flat surface. A platform bed (decked or slatted) or a foundation would be your proper choice. Using an improper surface can allow you to sink into the mattress too much as well, and often will void any manufacturer’s warranty.
Industry standard for a king would be 76" x 80", +/- 1" or so. In general, any foam mattress tends to be closer to this industry standard, as it’s easier for the fabricators to slit the foam in more exact dimensions. Industry wide, you’ll tend to find more variations in innerspring mattresses because of the mixture of different componentry and the amount of handwork involved. But variations still do exist.
I’m sorry you’re not enjoying your mattress/topper as much as your wife. As I mention often on the forum, a mattress that would be a perfect choice for one person or even a larger group of people in terms of comfort, firmness, and PPP may be completely unsuitable for someone else to sleep on (even if they are in a similar weight range). Hence, the reason that reviews or other people’s experiences in general won’t be a reliable indicator about the suitability, quality, durability, or “value” of a mattress for any particular person
Thanks again for visiting again and providing your feedback!
Phoenix