i do think it be nice little thing to have
and the sheets washing/changing for laundry day sounds about right
however i do not want it in that " doesn't make bed for one day now the flies are buzzing and bed stinks" way since that just doesn't feel realistic more so just messy sheets
i think it should at least take sim week for smelly sheets or few times of woohoo or very unhygienic sim using the bed
if you continue to not wash sheets after smelly then the bed could look proper disgusting yeah maybe thats where it wouldn't bother me being little overboard
and it could have bugs after a rather long while but i assume neat freak in me would very rarely let myself witness that stage