Sawatdee khap!
sweet dreams? well you can say 'fun Dee' which is more
accurately 'good dreams' (Dee meaning good) and you would add 'na'
on the end to soften it a little as in to a friend, if you wanted
to be polite as well you could say 'fun Dee na Khap/Ka' (khap if
you are male and ka if you are female)
sweet is 'waan' as in 'baak waan' or sweet mouth which is what
you will be called if someone thinks you are sweet-talking
them.
not sure if the term 'fun waan' is used or not. Also please bear
in mind that writing Thai words in romanised letters does not give
an accurate description of the correct pronunciation. For that you
really need to learn Thai script as it has all the tone marks to
show you how the word should be pronounced and which tone to use
with each word.
Therefore there may be some who will disagree with how I've
written the Thai words here :-)
sawatdee khap, fun Dee na khap ;-)
