What is the ideal temperature for sleep?

Is sleeping in a cold room healthy?

Yes, sleeping in a cold room is healthy - as long as the temperature falls within the expert-recommended range (around 16-19°C). In this range, the body can more easily switch into nighttime recovery mode, lower core temperature, and fall asleep faster. If the room is much colder than ideal (below 16°C), it may cause discomfort, shivering, and difficulty maintaining sleep quality due to increased sympathetic nervous system activity.

Is sleeping at 16°C healthy?

Yes, sleeping at 16°C is healthy - it's the lower end of the recommended range and works very well for many people. The body can effectively begin the process of lowering core temperature, which supports faster sleep onset and proper sleep architecture. Only people who are very sensitive to cold may need warmer bedding - but the temperature itself is perfectly healthy.

Is 25°C in the bedroom too much?

Yes, 25°C is too warm for a bedroom. This temperature clearly exceeds the optimal range for sleep. In such warmth, the body struggles to naturally lower its internal temperature, leading to more frequent awakenings, lighter sleep, and poorer recovery. Even temperatures above 22-23°C can cause overheating and discomfort during sleep.

What is the ideal temperature for sleep?

The most commonly recommended ideal sleep temperature is around 18°C. This temperature provides the best conditions for the body to enter recovery mode, maintain a stable sleep rhythm, and avoid overheating. Any deviation - whether too warm or too cold - can negatively affect sleep quality.

What is the healthiest temperature to sleep in?

The healthiest sleep temperature is between 16 and 19°C - this range supports the body’s natural thermoregulation. In such conditions, the body more efficiently lowers core temperature, which helps with faster sleep onset, better balance of sleep phases, and effective recovery. It’s a universally beneficial range for both health and comfort.