Dimensions 88,5w x 62d x 34"h
This is the Carlo Mid-Century Chair at West Elm. You can probably guess how it got the name, as it positvely oozes the style of that era.
https://www.westelm.com/products/carlo-2-piece-chaise-sectional-h2848/
A couch, also known as a sofa, settee, or chesterfield, is a cushioned item of furniture for seating multiple people (although it is not uncommon for a single person to use a couch alone). It is commonly found in the form of a bench with upholstered armrests and is often fitted with springs and tailored cushion and pillows.[1][2] Although a couch is used primarily for seating, it may be used for sleeping.[3] In homes, couches are normally put in the family room, living room, den, or lounge. They are sometimes also found in non-residential settings such as hotels, lobbies of commercial offices, waiting rooms, and bars. Couches can also vary in size, color, and design.