I’m super young and active but my body aches all the time and having a hard mattress was hell. I would wake up with a sore back EVERY SINGLE DAY!! I love this topper. It’s soft yet firm but more soft than firm which is exactly what I was looking for. I let it open for like 6 hours and that was about it lol, I didn’t want to wait 24 and it was just fine. It had a weird smell but it wasn’t anything crazy. It’s like day 5 day and it’s pretty much gone. I would recommend it to everyone. I love it and I can finally sleep through the night without tossing and turning.