King Size Mattress and Frame - $400 (foster city)

We're selling our IKEA Hesstun King Size mattress and basic metal frame.
This is an hybrid mattress, made of a layer of individually wrapped pocket coils as the support layer, topped by another layer of mini coils for more comfort, and finally a layer of memory foam.
We bought it from Ikea for $945 on Nov.
23rd 2023 (5 months ago, receipt available).
It's in perfect condition, no stains, no smell.
We'll also add a mattress protector, and a plastic mattress bag for transportation.
Asking $400 obo.
We're leaving the country and it needs to go.
Thanks!