Which bin for mattresses?
Usual answer in the UK
Special Special collection or specialist disposal
Mattresses are too big for any bin. Book a bulky waste collection, take one to the tip, or use the retailer's take-back service when you buy a new one.
Also possible: Household waste recycling centre (the tip); Shop or take-back point.
Does every council do this?
Most councils follow the answer above, but bins and sorting rules are set locally, and a few councils still do things differently. If your bin has a sticker, or your council sent a leaflet, follow that. Enter your postcode to go straight to your council's guidance.