EVERY CLOUD HAS A SILVER LINING

Be optimistic, even difficult times will lead to better days.

SLEEP ON

1.To ignore, overlook, or to forget something. Used as a verb, to sleep on something. 2.Overlooking something that is deemed good or tight.
"Yall can sleep on the Steelers. They finna take it all this year."

 3.. Lit. to recline on something and slumber.

a) I like to sleep on a firm bed. b) John had to sleep on the floor because his sister was visiting.

4. Fig. to postpone a decision until one has slept through the night. (As if one were going to think through the decision while sleeping.) 

a)It sounds like a good idea, but I'd like to sleep on it before giving you my response. b)  You go home and sleep on it and give me your answer in the morning.