Unlike a bad roommate, a good mattress always supports you and never stabs you in the back. Rest easy with today’s Groupon: for $499, you get a twin, full, queen, or king 8-inch Embrace memory-foam mattress at Underpriced Furniture in Norcross (up to a $1,399 value).

Underpriced Furniture’s sleep-inducing mattresses reacquaint buyers with the undersides of their eyelids as soon as their bodies touch the pillow-like surface of a Spirit Sleep mattress. Two inches of memory foam top the firm foam base of an Embrace mattress, forming a comforting layer that entices tired minds to sleep by softly whispering songs from Jethro Tull's Christmas album. Green-tea-infused memory foam eliminates the chemical odors commonly associated with foam mattresses, and Silver Science technology annihilates bacterial growth and wandering dust mites. Napping platforms are available in twin, full, queen, or king sizes. Customers can call the store to reserve a preferred size, which can be delivered to homes within 25 miles of the retail store for $49. Mattress movers can also remove previous beds at no extra charge, though the spirits of old mattresses may continue to slide forlornly across floors in the dead of night.