Walmart offers the Intex Classic Downy Full Airbed, model no. 68758WL, for $8.88. Opt for in-store pickup to dodge the $4.97 shipping fee. That's tied with our mention from three weeks ago and $7 under the lowest price we could find for a similar mattress elsewhere. (It's also the best we've seen for a full size airbed.) It features a 2-in-1 valve and plush flocking.