[portlander12345]

Can confirm, have moved king-sized mattresses, large dressers and cabinets, etc via a trailer on an ordinary bicycle. It’s really easy!

Where I’m from there’s a tradition in the bike community called a “bike move”. When you’re moving, you invite everybody to show up on a certain day with their trailers and cargo bikes. Everybody packs and moves you in a distributed manner! All you have to do is provide coffee and donuts in the morning and pizza and beer for after. Fun, community-building way to move.

[mandelbrotwurst]

That sounds awesome. Are you in Oregon?

Edit: Ah, I see your username now =)

[qmmmur]

How? I can't feasibly imagine balancing my UK queen in a bicycle.

[foxyv]

If you strap the mattress to the box spring to stiffen the mattress you can set it on its edge and it won't sag. Then just set the box spring and the mattress on a flat bed bike trailer and you are good to go.

They make trailers like this for big and heavy stuff: https://www.bikesatwork.com/bike-trailers