How to put a King size mattress in a car.

An early start to hopefully see the Otters. They must have gone much further downstream as they appeared after about an hr and went straight to bed. Probably in my sight for about 5 mins so I haven’t taken any pics. Waited another hr talking to a friend, but they must have been warm and full unlike we lesser mortals who were getting cold and hungry.
The mattress arrived as promised so I am hoping to get a good nights sleep. Taking the old one to the tip was interesting. Anybody walking past who happened to look through our window would have seen me and Mr. C. rolling around on top to strap it down. About an hr to get through the horrendous traffic that is Kendal’s free flowing one way system and a further queue to get onto the site. Only one car behind us before they locked the gates and turned everybody else away.
Do I go and look for the otters tomorrow - well that depends on the mattress.