Sweetcrispy Tri-Fold Memory Foam Mattress - 4 inch Queen Foldable Mattress with Collapsible and Washable Cover, Portable Floor Bed with CertiPUR-US Certified, for Travel & Yoga, Guest Mat

Customers find the mattress comfortable, soft, and easy to set up, with good quality and excellent value for money. The mattress folds up for easy storage and takes minimal space when folded, and customers report perfect night sleep on it. The size receives mixed feedback - while some say it fits twin-size floor beds perfectly, others note it only expands to about 1 inch. The thickness also gets mixed reviews, with some finding it thick while others say it's not very thick.