It’s disappointing when you wake up in the morning and can’t recall any dreams that you had overnight. There are some research-backed possible explanations for dreams that cannot be remembered. One possible reason is rapid eye movement (REM) sleep deprivation as vivid dreams are associated with this unique phase of sleep. Certain medications in particular antidepressants may suppress REM sleep. Alcohol may also delay the onset or reducing the amount of REM sleep. So what can you do to improve your dream recall? Taking Vitamin B6 supplements before going to sleep can help you remember your dreams in the morning