In an ideal world, yes they should. Not round here though. I am ahppy in my slatternhood.
(Off topic - I have discovered that MIL does not change the sheets on the guest bed between visits. I suspected she didn't, so the last time we were there I hid a small toy in the bed. Visited again at weekend, and toy was still there. Not slating her, as she is lovely, but was intrigued - I'd never do that)