ON YOUR BEDSIDE TABLE

Google Nest 2 Hub, £89.99, store.google.com

CLAIM: This ‘understands when you go to bed, when you get up and how long you’ve rested’, using motion and sound sensors to detect movement, breathing and snoring.

VERDICT: I tested this on the same night as the Muse headband and the Amazfit earbuds ( see main run), which was a bad night all round. The Nest has me asleep for far less time (three hours and 40 minutes) than the Muse band, and accurately picked up on me waking furiously at 4am. It also has the time I woke for the day correct — 6.44am — but says I went to bed ‘too late’ at 12.40am and fell asleep 12 minutes later. In fact, I got into bed at midnight, but I did do a lot of getting up and down to adjust my headband.

With no nonsense about sleep cycles to confuse matters, it seems that the Nest has given me a fairly accurate diary — but I hate seeing in stark bold type (in the email I received after) that I had less than four hours’ sleep. However, the experts suggest Nest might be the best tracker here — as it claims to do the least.

‘You don’t want an overload of information, but the fact this makes a note of the room temperature and amount of light is an important element overlooked by other trackers,’ says sleep researcher Dr Nayantara Santhi because sleeping in a room at the right sort of temperature — around 17c (63f) — and as dark as possible ‘is much more beneficial to your sleep quality than trying to get a handle on what your brainwaves have been doing all night’, she says.

MY SCORE: It promises relatively little — but delivers. 7/10