Walmart offers the Coleman Quickbed Queen Air Mattress
, model no. 5998M320, for $25.16
. With free shipping
, that's the lowest total price we could find by $21, although it was $6 less on Black Friday (since expired). Sales tax is added where applicable. It purportedly inflates in 90 seconds and features a double-lock valve. It measures 74" x 60" x 8.5" when inflated.