Tempur Sealy files case to enjoin FTC's administrative merger challengeIn a new action related to its proposed acquisition of Mattress Firm, Tempur Sealy International says that the Federal Trade Commission is violating constitutional protections. Tempur Sealy to sell 176 Mattress Firm, Sleep Outfitters stores in bid to gain FTC OK Tempur Sealy International is looking to gain regulatory approval for its blockbuster deal to acquire Mattress Firm by divesting some stores. Mattress Firm expands DoorDash partnership with campus ambassadors Mattress Firm and DoorDash are recruiting college students to serve as promotional sleep experts. Mattress Firm rolls out two-hour delivery with DoorDash The nation's largest mattress specialty retailer has a new on-demand delivery partner. Tempur Sealy to acquire Mattress Firm in $4 billion deal A leading bedding maker is set to acquire the nation’s largest mattress specialty retailer.