Woot offers Vibe Gel Memory Foam Sofa Bed Mattress | Replacement Mattress for Queen Size Sleeper Sofa and Couch Beds for $59.99 (orig. $224.85) + free shipping with Prime.

Product Description:

Upgrade your innerspring or memory foam mattress with Vibe Gel Memory Foam Sofa Mattress. It easily folds in most sleep sofas and maintains its original shape after many uses. Rest easy knowing that your guests will be comfortable on this plush gel-infused memory foam mattress. It also meets CertiPUR-US program standards for performance, emissions, and durability, so you and your guests can rest easily. Sofa sold separately.