Hi puhgche,
The better options I’m aware of in the Seattle area are listed in post #2 here.
The simplest way I know to get to find the best possible choice for you is to follow the steps in the “read first” post I linked. If you always talk to a retailer or manufacture on the phone first before you go there and tell them your criteria (including your budget), visit the ones you are most attracted to, decide on the type of materials or combinations you prefer, and narrow your choice down to one at each retailer or manufacturer … then it’s easier to make final choices based on your own personal value equation. Without some local testing though at better manufacturers or retailers that are open and transparent about their mattresses, it’s much more difficult to make final choices (or even narrow things down) because you won’t have any meaningful reference points or ways to compare them with other local or online choices that are available to you.
Phoenix