Mattress bought from Costco, listed new price = $700:
Novaform 14" Comfort Grande Plus Gel Memory Foam Mattress Medium firm
https://www.costco.com/novaform-14%22-comfort-grande-plus-gel-memory-foam-mattress-medium.product.100667300.html?preselect=bed+size%3acalifornia+king

Frame from Amazon, listed price = $210:
https://www.amazon.com/gp/product/B00EQG6VB6/ref=ppx_yo_dt_b_asin_title_o03_s01?ie=UTF8&th=1

Both bought in late 2020

You pickup (zip: 94402)
Phone: 334-444-7207 (text only, thanks)