Costco Deal: Sleep Innovations Novaform Gel Memory Foam Twin Mattress $149.99 by Rhonda August 3, 2020 1/29/13. Costco has the Sleep Innovations Novaform Gel Memory Foam Twin Mattress on sale for $149.99 (after manufacturer’s instant rebate), now through February 3, 2013. That is $40 off Costco’s regular… 0 FacebookTwitterPinterestEmail
