Underneath this layer is where you’ll find the sensors, and these are vital for tracking various aspects of your sleep and how you move in bed.

Because it’s so cradling, it’s also brilliant at reducing motion transfer from you to your partner and vice versa.

And if you are familiar with the best memory foam mattresses, this particular material is excellent at contouring the body and relieving high impact pressure points. The ReST Pump-in-Bed mattress itself is made with three different layers: the top layer is made from 4' of cooling, gel-infused memory foam.

This boundary-pushing air mattress uses software and hardware with over 20 patents, so you really are getting some of the best smart bed tech around. The name has become synonymous with cutting-edge sleep technology in beds, and while the ReST Pump-in-Bed is one of its more affordable models, it doesn't cut any corners in terms of sleep tracking and custom comfort. ReST is widely considered to be one of the best smart mattress brands. Do bear in mind, though, that they'll cost a lot more than you'd pay for a mattress in a box and one of the best bed frames, so it's worth keeping an eye out for a mattress sale that'll take the price down. ReST, Sleep Number and Eight Sleep are some of the top brands in this area, and you’ll find each of those brands and a few other carefully curated options in our best smart beds guide. Other smart beds are aimed more at medical or mobility issues they can be adjusted to help you sit up more comfortably, or raise the level of your head slightly if you have problems such as snoring, back pain or acid reflux. Features vary between brands some smart mattresses have sensors providing the sort of tracking you'd get from a fitness tracker, only geared towards sleep, while some deliver dual-zoned heating, cooling or firmness adjustment, usually by pumping air or water in or out of the bed. The terms smart beds and smart mattresses are largely interchangeable essentially we're talking about any bed with built-in tech and potentially the option to control it with an app. If most of the options in our best mattress guide feel just a little too low-tech to you, and you'd prefer your bed to be able to help you understand how you sleep and improve your comfort in the night, one of the best smart beds and smart mattresses would be the perfect choice.

Saatva adjustable beds