SIR - People dump their rubbish anywhere these days but recently I was surprised to see for the first time ever a single mattress perched on the lower branches of a tree.

Fly tippers I thought.

But then again it could have bean the sleeping quarters of one of the homeless making sure they were safe from stray dogs that roam our streets 24/7. You never know.

One thing for sure they wouldn’t be disturbed by a bobby on the beat, they’re a species rarely seen at night.

D Rhodes, Croscombe Walk, Bradford