Samsung connects watch to AC unit to adjust temperature depending on sleep stage

I know that in Zimbabwe most of us do not have air conditioning at home. If you have a fan consider yourself lucky. If it’s a ceiling fan, you might as well be Strive Masiyiwa to the rest of us. 

However, you’ll still love to see the cool tech Samsung has whipped up. 

Samsung has the ‘Good Sleep’ mode for its air conditioners, designed to enhance sleep quality by automatically adjusting indoor temperatures and humidity based on sleep stages.

The mode adjusts the temperature throughout the night according to the four/five stages of sleep, ensuring optimal comfort during each phase of the sleep cycle.

They say there are four/five stages of sleep and there is an optimal temperature for each stage. Good Sleep will keep you in that range.

If the temperature is not in the optimal range, this may affect the quality of sleep. Hence why this would be a big deal.

How does the air conditioner know what stage of sleep you’re in? It talks to your smartwatch which tracks that kind of thing. 

Here is a recent night of mine:

Samsung is saying the watch tells the AC unit that you’re in the REM stage and it adjusts temperature accordingly, for example. You can read more about how exactly it does this below if you’re in the mood to nerd it out. Samsung says:

The ‘Good Sleep’ cycle adjusts the indoor temperature according to the stage. First, when a person falls asleep, temperature is quickly lowered within 5 minutes to immediately create a pleasant environment. The temperature is kept low consistently during the next 90 minutes to facilitate deeper sleep. Starting from 90 minutes, the air conditioner increases the temperature to prepare for the deeper stages of sleep – N2 and N3. In these stages, body temperature and blood pressure fall the most, indicating that outer temperature needs to be warmer. Temperature is increased within two degrees above target level to prevent awakening due to cold sensation.

Throughout the eight-hour sleep cycle, alternating periods of lighter REM sleep and deeper NREM sleep occur. The ‘Good Sleep’ mode continually modifies the temperature throughout the night, adjusting it approximately three times. Approaching the end of sleep, temperature is kept high, but gentle wind is blown to create a refreshing atmosphere.

It’s simple to understand but sounds like it would be huge if you had a smartwatch and an AC unit that could communicate with each other. There’s always magic when devices talk to each other. 

The ‘Good Sleep’ mode is compatible with the Galaxy Watch series, allowing users to automate air conditioner settings based on sleep detection without manual adjustments.