Oh my god...GET THIS BED WHEN YOU CAN! Im so glad i made this purchase, after allowing the bed 72 hours to fully inflate I was able to sleep on my bed last nice. And let me tell you i felt like I was sleeping in heaven on a cloud. It felt too good to be true. BUT WAIT A MINUET, ahen I woke up...LORD I FELT 100X BETTER THAN MY OLD TWIN MATRESS. Truly an upgrade, it suppotts my back well. Im a back and side and stomach sleeper so TRUST ME when I tell you it works wonders. I usually always feel some sort of back pain regarless throughout the day, but i felt 0 when I woke up and I am amazed. Please get this bed, best bang for your buck. Im not sure how the purple matress or necter or sleep number beds feel put there, but I can say this sure comes close to it for the amount of money you are paying! Lastly please wait a full 72 hours the bed really does reach 12" you just need to be paitent lol! 3 pics of measurment are from MAY 7th to at the end of May 9th!