West Elm Harris 114" Right Multi-Seat Sleeper Sectional

Only 1 year old. Always used with a cover. Brand new mattress (never used). Harris 114" Right Multi-Seat Sleeper Sectional w/ Bumper Chaise PCT Storm Gray. Sofa folds out to reveal a Queen-sized mattress. New, it is about $4,500 (screenshot attached). Seat firmness: Medium. On a scale from 1 to 5 (5 being firmest), it's a 3. Gel mattress features a 2-layer construction of high-density foam and gel-infused foam. Overall (sectional): 114"w x 88"d x 33"h Mattress: 60"w x 72"d x 5"h https://www.westelm.com/products/harris-sleeper-sectional-w-terminal-chaise-h4588/?cm_src=sectionals