We like different beds. We have one bed.

One bed, two verdicts

You bought your last mattress by lying on it for ninety seconds. Both of you, one after the other, then a look across the showroom that meant the same thing: fine, the middle one. The middle one is nobody's mattress. It is firm enough to leave the lighter sleeper lying on top of it and soft enough to let the heavier one sink, and it does exactly that for ten years.

Shoes get measured. Glasses get measured. The thing you spend a third of your life on gets soft, medium or firm, and when there are two of you it gets one word for both. One of you is putting up with it. Usually the one who does not complain.

What the AI Pro XII does about it

The AI Pro XII is two mattresses in one cover. Twelve air chambers run the length of the bed, six on your side and six on theirs, and the centre line is a real boundary. The left half is read and controlled on its own. So is the right.

Reading is the part that matters. There is no wearable and nothing to strap on or charge. The air in each chamber is the sensor. When you roll onto your side, pressure rises under your shoulder and hip and drops under your waist, and the system reads that change as posture. It then adjusts the chambers under you, and only under you. Your partner's six chambers are working from their body, not yours, and they never find out you turned over.

That is the whole answer to the firmness argument. You do not settle on a number. You each lie down, and by the time the settling sequence has finished, twenty minutes in, each half of the bed has taken the shape its sleeper needed. Turn over at 1am and it changes again. Your side, not theirs.

The AI Pro VI does the same on six chambers, three a side, at a lower price. The Air range takes the simpler route: AirFlex and AirPro hold a firmness you set per side from the remote or the app, and keep it until you change it. Either way, the bed stops being a single decision that one of you loses.

Nothing to feel

People ask whether they will feel it moving. The adjustments are slow and near silent by design, and the pump runs under 40 decibels, quieter than the room it is in. What you notice is not the movement but the absence of the thing you used to notice: the shoulder that wanted to be somewhere else, the hip that ached by six, the elbow at 3am when the snoring started and the head end lifted a few degrees before either of you woke.

What the fitting checks

Come together. Half of what we will show you only makes sense with two people on the mattress. The scan reads each of you in turn, about three minutes each: where the pressure sits, where the support gives, what your spine is doing when you lie on your side, and the pillow height that keeps your neck straight. Then we set the two halves differently and you lie down side by side and feel where they meet. Most couples find the line with a hand before we point it out.

You keep your fitting results whether you buy or not. If the readings say you both want the same feel, we will say so, and a Sync will do it for a fraction of the price. If they say what most couples' readings say, that one of you is broad through the shoulder and the other sleeps on their back, the AI Pro XII is the bed that was built for the argument you have been having.

Fifteen minutes booked. The room is yours for longer.