I just put some sheets into my washing machine. I routinely wash everything at 50 degrees C - and occasionally at 60. Seems to work OK.

It's getting the damn stuff dry that's the problem! We're having some fine weather at the moment (after months of rain) and I can hang stuff up outside.

I'm sure, though, that if there was a lady in my household she would tell me that I was doing it 'wrong' ... there are some advantages to be a bachelor ...