Delta’s mattress sucks pond water! We ran down to Lowes for a Hybrid foam/coil full Queen 10” tall mattress. Normally about $800 on sale for $499; with my military 10% off, it got cheap. Out with the old; in with the new. Of course, an Alliance professional ran a sheetrock screw (mounts the hydraulic lift to raise the bed) through the bed platform so it ripped the Delta mattress Taking it out. Ground off ¼”+ of the screw tip and reinserted. Found 3 more just shy of breaking through. But the mattress is great! We bought a much pricier one for the house a few months ago. This one is better. Of course, a 10” tall mattress is tough to climb aboard!