He would have had to jumped into the bed onto his back with the base of his head hitting the headboard so strongly that he cracked the base of his skull, then turn around and stand up, hitting his eye sockets bad enough to crack on the headboard, then crawl under the covers, turning around, and choosing to not call for help from the lobby or 911.
Yeah, the “headboard.”
One Dr was talking about how we needed to know if he crawled to the bed from the floor..or did he get up and cover himself with the sheets.
TMZ appears to answer that question
Under the sheets