The "things you need to know" thread

[seremtan]

^ the works of Nietzsche might be the first philosophy ever written on a typewriter also

[Whiskey 7]

Been a while but I found another today.
Thought I'd share.
So sleep tight

In Shakespeare's time, mattresses were secured on bed frames by ropes.
When you pulled on the ropes, the mattress tightened, making the bed firmer to sleep on.
Hence the phrase...'Goodnight , sleep tight'

[4days]

Susan Eppes' line, with its clear link between 'sleep tight' and 'sleep well', leads us to the most probable explanation for the phrase. The word tightly, although not often used in this way now, means 'soundly, properly, well'. The earlier phrase 'tight asleep' derives from this meaning, as seen in this example from Marie Beauchamp's novel Elizabeth and her German Garden, 1898:

And once, when there was a storm in the night, she complained loudly, and wanted to know why lieber Gott didn't do the scolding in the daytime, as she had been so tight asleep.

'Tight asleep' just meant 'soundly asleep', or to put it another way 'fast asleep', and 'sleep tight' just means 'sleep soundly'.

http://www.phrases.org.uk/meanings/sleep%20tight.html