Complaint about my new Saatva

I have a real problem with my new mattress. My 80 lb greyhound loves it and we can’t keep him from jumping up on the bed in the middle of the night. Every night he jumps up, we make him get down....he waits until he knows we are asleep....then he jumps back up and steals the covers and tries to push us off the bed. With our old bed, he would just accept that he couldn’t sleep in the bed, but he LOVES the new Saatva so much it is impossible to keep him off of it. We have had our new bed for almost 3 weeks and we absolutely love it! My in-laws bought one just last week because our raves! My cousin is going to buy one soon and 2 of my friends plan to in the near future as well. We need Saatva to make dog beds, so Mugsy can have his own!