Walmart offers the Intex Queen Classic Downy Airbed Mattress in Blue for $15.97. Opt for in-store pickup to avoid the $5.99 shipping charge. That's tied with our October mention and the lowest price we could find today by $6. It measures 60" x 80" x 8.75".

Note: It's also available in Twin for $7.97 via in-store pickup. That's also tied with our October mention and the lowest price we could find by $9. It measures 39" x 75" x 8.75".