We already know that repeated practice and sleep improve our memory and help us learn faster. But a recent study, published in the journal of the Association for Psychological Science, improves this theory.

The researches found out that getting some sleep in between study sessions may make it easier to recall what you studied and also relearn what you’ve forgotten, even 6 months later. Previous researches on this subject stated that sleeping after learning is definitely a good strategy, but this recent study shows that you should sleep between the study intervals. Sleeping in between study sessions is reducing the effort needed to commit information to memory thus making the learning process much more efficient.

Stephanie Mazza, psychological scientist who lead the research had the following statement: “Our results suggest that interleaving sleep between practice sessions leads to a twofold advantage, reducing the time spent relearning and ensuring a much better long-term retention than practice alone. Previous research suggested that sleeping after learning is definitely a good strategy, but now we show that sleeping between two learning sessions greatly improves such a strategy.”

So next time when you are preparing to study for exam, try to have some sleep between the sessions. It will take you less time to study the material and increase your chances for passing the exam.