Back in the 90's, we had a cat named Wendel.
She was a grey Tiger. She was pretty hefty.
She used to climb up, on our Waterbed bookcase during the night. She must have worked hard, to get up there, because it was four feet higher than the bed.
During the night, she made sure, she landed on me or my wife's stomach, when she jumped down.
It was like, getting punched. Not the way to wake up.