I grew up with dachshunds, and we currently have one on the strength. He’s snoozing on the bed, with his long nose dangling straight over the edge and his eyes looking at the floor (or would, if they were open). Looks most uncomfortable, but he seems content.
All of the dachshunds we’ve had slept this way, and I don’t recall seeing other dogs do it.
Why do dachshunds sleep this way?