Given that we spend a third of our lives sleeping (or trying to get to sleep), it’s slightly infuriating that society still makes out that sharing the same bed as your partner is the benchmark for a healthy relationship, with any deviation from the norm seen as the gateway to separation – the great symbol of ‘uh oh, trouble in paradise’. 

Despite the slew of reasons why someone might struggle to get to sleep – too much Netflix, noisy neighbours, new job nerves, a snoring S.O. or simply a clas...