Full description at https://www.ebay.com/itm/327303623042
SELECT COMFORT SLEEP NO. BED FRAME/KING - I8 MODEL/FLEXFIT 3 BASE-LTD (TWO SEPARATE FRAMES THAT GO TOGETHER)
I purchased this item, thinking it was a Queen, kept about six months, and realized it was just TOO LARGE for my small bedroom. Only used by one person and is like new. Operates from app on telephone. I replaced with a Queen size flexfit bed. Mattress was purchased via eBay and this item will be sold in same manner. If desired, I can share name of Sleep Number person who installed my bed and packaged the one that is for sale.