Dreem aims to help you sleep better by monitoring, analysing and acting on your brain overnight, according to Wired.

Freud isn’t the only one with an Interpretation of Dreams: writing in 1576, Elizabethan author and astrologer Thomas Hill understood dreams as the raking-through of everyday psychological overloading, and pamphleteer Thomas Nashe later said they were “nothing else but a bubbling scum or froth of the fancy, which the day hath left undigested; or an after-feast made of the fragments of idle imaginations”.

Today, our understanding of dreaming – or, as it’s properly known, REM (Rapid Eye Movement) sleep – isn’t so far from these musings: we know that this phase of sleep is biologically necessary and disruptions in REM sleep have been linked to depression. You also need enough good quality slow-wave deep sleep to replenish ‘neural networks’, regulate hormones, regenerate cells and process memory.