This feature applies to home air conditioners of models ARB****, ARC****, ARD**** with Wi-Fi connection, when used with Galaxy phones from S22 and above and Galaxy Watch4 or Galaxy Ring wearable devices. Users need to install SmartThings, Wearable and Samsung Health applications on Android or iOS. Devices must be connected to Wi-Fi, use the same Samsung account and sync to activate the feature.
When temperature affects sleep
Although often overlooked, ambient temperature has a huge impact on sleep quality. Waking up in the middle of the night drenched in sweat or shivering from the cold is a common experience for many people. This makes it difficult for many people to get quality sleep, affecting their daily activities and mood.
Prolonged hot weather disrupts sleep, leading to the need for a cooler, more comfortable sleeping environment. The sharp increase in sales of Samsung air conditioners in Korea partly shows that consumers are increasingly interested in improving sleep quality. Based on this reality, Samsung has developed a mode on the air conditioner to help users sleep better at night.
The key point of this mode is that the ideal temperature for sleep is not fixed throughout the sleep process. This is why many people wake up in the middle of the night, even though they set the air conditioner to the optimal level before going to bed. The temperature needs to change according to each stage of sleep, from the moment of falling asleep, to deep sleep, and when about to wake up. In 2015, the Samsung team collaborated with Kyunghee University to determine the optimal temperature for each stage of sleep, and from there developed a suitable algorithm for air conditioning.
When connected to Galaxy Watch or Galaxy Ring, users can enjoy Good Sleep mode completely automatically without manual control.
How “Good Sleep” mode works
“Good Sleep” mode adjusts the room temperature according to the human sleep cycle. According to Samsung’s research team, sleep consists of 5 stages: wakefulness, REM (rapid eye movement) and 3 NREM (non-rapid eye movement) stages. Each stage has differences in brain waves, eye movements and body temperature. A complete sleep cycle lasts about 90 minutes and is repeated 4 to 6 times per night.
“Good Sleep” mode adjusts the temperature to suit each stage. When the user starts to sleep, the temperature is lowered quickly within 5 minutes to create a comfortable environment. For the next 90 minutes, the temperature is kept low to support deep sleep. The air conditioner then gradually increases the temperature to suit the deeper sleep stages (N2 and N3), when body temperature and blood pressure drop sharply, so the surrounding environment needs to be warmer. The temperature is increased slightly (maximum 2 degrees Celsius) to prevent the user from feeling cold and waking up.
During the 8-hour sleep cycle, REM and NREM stages alternate. The “Good Sleep” mode continuously adjusts the temperature, with about 3 changes during the night. Near the end of sleep, the temperature is kept higher and a gentle breeze is blown to create a refreshing feeling when waking up.
On WindFree™ models, Good Sleep mode operates with gentle WindFree™ cool air, while conventional models blow direct air to achieve the desired temperature.
Samsung air conditioners integrate “Good Sleep” mode to help users have a comfortable sleep all night long.
Automate with Galaxy Wearables
When paired with a Galaxy Watch or Galaxy Ring, users can enjoy Good Sleep mode completely automatically without manual control. After purchasing the wearable, users just need to enable the setting to automatically turn on the air conditioner when they start sleeping. If the air conditioner is off, the wearable will turn it on and set it to the appropriate temperature. If the air conditioner is running too cold, the device will adjust it to be more suitable for sleep.
Samsung has been experimenting with this connection since 2018, when the wearables market was still in its infancy. The product planning and software teams pioneered the integration of wearables and home appliances. However, it was not until 2023 that the feature was officially implemented. By then, the wearables market had matured, and users were even accustomed to wearing their devices while sleeping.
“Good Sleep” mode adjusts the temperature corresponding to each stage.
“Just by looking at our friends and family, we could see that people were increasingly concerned about sleep quality,” said Kyungju Lee, who joined the project six years ago and is now the head of product planning for the home air conditioner line. “We knew it was time to bring back the feature we tested in 2018. The timing was right.”
Source: https://dantri.com.vn/cong-nghe/nang-cao-chat-luong-giac-ngu-voi-dieu-hoa-va-thiet-bi-deo-thong-minh-cua-samsung-20250629113923442.htm
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