My shoulder hurts at 6am and it is fine by lunch.

The 6am shoulder

If the pain is worst in the first hour and gone by lunch, it is not your shoulder. It is where your shoulder spent the night. A side sleeper puts most of their weight through two points, the shoulder and the hip, and a fixed mattress answers both with the same push back, all night, for years. The lighter parts of you float. The heavy parts carry you.

The pain has a pattern. Shoulder if you sleep on your side. Lower back if you sleep on your back with a hip that sinks and a waist that does not. Both if you turn between them, which most people do a dozen times a night without knowing it. None of it was ever measured. That is the part CasAI fixes first.

What float mode does

Float mode is the AI Pro XII taking the weight off the points that carry it. The twelve chambers, six a side, each hold their own pressure. When the sensing layer reads a peak under your shoulder and hip, the chambers under those points ease and the ones under your waist and lower back firm up, so the load spreads along the whole side of your body instead of piling onto two joints. Pressure comes off the contact points until the bed stops pushing back at you. It is the closest a mattress gets to holding you without touching.

It is not a setting you switch on and forget. Roll onto your back and the reading changes: pressure appears at the shoulders and hips in a different pattern, the lumbar dip opens up, and the chambers under it rise to fill it. Roll back and it lets go again. The adjustments are slow and near silent, so the shoulder that used to wake you at six is simply not being pressed on at five.

The AI Pro VI does the same on six chambers. If you would rather set the support yourself than let the bed read it, the AirPro holds eight chambers at a firmness you choose per side. And if the readings say a fixed feel is enough, the Sync range has four of them.

What the mattress cannot do

It cannot fix a shoulder that hurts all day. If the pain does not fade by mid-morning, or it started with an injury, see a doctor before you see us. A mattress changes the eight hours you spend on it, not the sixteen you spend off it, and we would rather say that plainly than sell past it.

What the fitting checks

The scan measures the thing nobody has measured: pressure distribution. You lie on the trial bed, on your side and on your back, and the display shows a map of where your weight sits, red at the peaks. For a side sleeper that is almost always the shoulder and the hip. It also reads spine alignment, the lumbar dip in degrees, and body proportions, because a broad shoulder over a lighter hip needs a different answer from the reverse. The pillow scan finds the height that keeps your neck straight, which is where a lot of morning shoulders actually begin.

Then you lie on the bed the readings point to and stay as long as you want. Turn over. See whether the shoulder still wants to be somewhere else. You keep the results either way, and there is nothing to buy on the day.

If the map shows a mild peak and an otherwise even spread, a Sync in the right firmness may be all you need, and we will say so. If it shows the two hot points that most side sleepers carry, the AI Pro XII in float mode is the bed built for them.