**[LinenSpa (fulfillment by Amazon.com)](http://www.passwird.com/links/1qq57M)** has the Lucid 4-Inch Folding Mattress and Sofa, Twin (LU04TTFSGF) for **$79.99** with Free Super Saver Shipping. Positive customer reviews.

* Doubles as a sofa style floor chair to provide comfortable seating and a convenient guest mattress in one
* Perfect for sleepover guests, camping, cabins, dorm rooms and children’s playroom

Next lowest price on [Google Products](http://www.passwird.com/links/yT8Ch5) from a rated merchant is $119.99.