What time is it officially allowed for us to say 'GOODNIGHT' then ey? 
Obviously after 10pm when you go to bed like.... 
And before 8am when the Good morning thread starts like.... 
So when does the morning thread close then ....... 
In the afternoon presumably,providing you don't wake up AFTER 12 noon I presume, then I suppose a 'good morning' MIGHT still be acceptable..possibly.
Where's the
terms and conditions apply small print for this conundrum ey?