?hueify (UNKNOWN MEASUREMENT) HUEIFY Tri Fold Memory Foam Foldable Mattress Folding Mattress for Guest Sleep. Portable Trifold Mat with Removable Washable Cover, Floor Sleeping Mat for Adult and kids Tri-fold is up for auction in Home & Kitchen. The current bid is $2.00, 97% below the $62.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.