Gave the mattress the full recommended time to decompress and it only ever reached 5.5" at the highest points. After still wanting to give it a chance, after a couple weeks the mattress was sinking in and it became uncomfortable as I was likely laying close to the bed frame (which doesn't require a box spring), and for reference weight is < 120 lbs. I contacted Wayfair and they were nice enough to send a replacement. This time I let it rise for a week and it was worse than the first, so I would not recommend purchasing this mattress.