Motion trackers aren’t the only gadgets claiming to track sleep. Products such as the SleepRate, which comes with a chest strap, will track heart rate, which can be used to infer sleep.

Combining a chest heart rate monitor with a smartphone app, SleepRate, which uses a heart rate strap, monitors sleep and can craft a bespoke sleep improvement plan. SleepRate claims to be more accurate than motion-based sleep monitors and if serious problems are detected SleepRate will suggest a visit to a sleep doctor.

SleepRate – £60