My husband and I got this mattress since we needed something a little more firm now that I’m pregnant and our tempurpedic was hard for me to get in and out of as it was so soft. We didn’t have a ton of $$ and I’m so glad I found this company! 
The mattress inflated much faster than 72 hours and is really nice in design. 
It is the perfect amount of firm for us, but still molds to your body well and has a nice squish. I have had so much less back pain since switching over.