ever wonder why we say good nite to each other before sleep?

juz realise the importance of a good nite's rest. when u have a good nite's rest, u feel refreshed, energised to face tomorrow. when u dun sleep well at nite, like aches or getting up in the middle of the nite often, u juz dun feel good when u wake up in the morning, like not enuff rest like that.

so next time when we say good nite, mean it.