Those of you who have been studiously following the mattress industry for several years (Ed: er, that’s just you) will remember when Simba just sold one mattress. It was a simple time when kids played outdoors and helicopter parenting was where your parents spun you round (Ed: get on with…

Sandi Toskvig and Alan Davies could fill a whole episode of QI discussing mattresses. Admittedly it would not be a ratings-winner but there are numerous myths and misconceptions about the mattress market. They have also gone past series M but let’s not worry about that. For example, how many springs…