If you're puzzled over a particularly perplexing conundrum, the last thing you'll want to do is lose sleep over it. In fact, you just might want to get more. We already know the positive effects of sleep and dreams on memory, but dreams can also help us tackle everyday problems in life.
When approached with obstacles, we primarily pull on information we already know -- our memories -- to resolve them. This makes dreaming especially helpful because it helps organize and consolidate memories, making it easier to access when we're problem solving. Some scientists also propose that while we sleep, our brains continue to process issues of concern in our waking lives and constantly attempt to come up with answers and solutions. So if you're facing a particularly difficult quandary, go ahead and sleep on it. It might actually help.