Earlier quoted context omitted.
Maybe 30s here, but I'm not claiming to be the fastest; I'm wondering if body length is a factor. As a somewhat tall person (189cm) in my 50s I never had any issues changing doona covers. Had a much shorter girlfriend at one point who simply said "that's not fair" when she saw me do it.
When i got a superking bed i realised what others had been complaining about.
Yeah, I reckon you'd be right. The 210cm Queen size is just within limits, would have to change my method for anything bigger.