How well you sleep and where is totally subjective. But studies like 'green sleep' amongst others show that sleeping closer to nature in the countryside, rather than the city has benefits when it comes to resting. The best environment to sleep should be based on a number of factors, including air quality, noise level, exposure to artificial light, and temperature.
Research shows you sleep better in open spaces that have clear, non-pollutant air, are quieter with little disruptive noise as possible, and areas that allow for natural light. The best temperature for sleep is said to be 65 degrees Fahrenheit (18°C).