After a one-year sabbatical at Stanford, I am moving out and selling all my furniture.

This is a Kivik Sofa with chaise (in Tibbleby beige/gray color), which is less than 1 year old and in very good conditions. See here a full description of the Kivik Sofa with chaise:

https://www.ikea.com/us/en/p/kivik-sofa-with-chaise-tibbleby-beige-gray-s79440586

Pick up in San Francisco.

In case you're interested in other furniture I'm selling, the full list of my moving sale is here:
https://www.icloud.com/numbers/0adKgrVukBR_PN8kgf9y4m8kQ#Moving_sales