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With previous research suggesting that the fostering of long term memories happens during sleep (when the brain is in an oscillating rhythm), current research suggests that listening to audio coinciding with that rhythm can increase memory skill. As an experiment, researchers worked with 11 healthy students who were asked to memorize 120 word pairs before going to bed. As a result, on the night that they listened to the rhythm of their brain, they remembered the most words. This study also revealed that synced audio was linked to a longer deep sleep instead of more deep sleep cycles.

The bright light emission from smartphones or tablets can affect melatonin, the hormone that controls the body's sleep-wake cycles. A Mayo Clinic study tested with different brightness levels and distances the devices must be to least affect melatonin levels in the body. Results revealed that low brightness levels along with the device held 1 foot away from the face disrupts sleep the least.

As a pharmacist, Catherine Ulbricht studied different types of music and its therapeutic effects. There are scientific evidences that support that music influences mood and helps with stress. 5 conditions for which music therapy has good evidence for are autism, dementia, depression, infant development, and sleep quality. However, music shouldn't be listened to at high volumes nor should be a sole treatment for dangerous medical/psychiatric conditions; therefore, safety should be taken into account.

Using a computer program, Neuroscientist Kamitani led an experiment to compare the brain's activity during sleep and during wake. This study involved 3 adult males, who were hooked up to a fMRI (used to measure brain activity). Being told to describe the things they saw in their dreams, the 3 adults were also asked to look at those objects in real life. Kamitani's study revealed that the brain responded similarly to objects dreamt about or seen awake.

In a survey carried out by Dr. Brown, an author, 86% of the participants reported having experiences that they recall from past dreams. Anne Cleary, Ph.D. has three reasons as to why a moment might seem like a re-experience of a dream: forgetting the experience leading to the dream, connections made during sleep, and mistaking the source. Strongly believing that dreams don't just come from "nowhere", Cleary admits to having "deja vu" experiences before.