The point at which sleep is disturbed due to temperature or climate conditions varies from person to person. Generally, temperatures above 75 degrees Fahrenheit and below 54 degrees will awaken people. Altitudes The higher the altitude, the greater the sleep disruption. Generally, sleep disturbance becomes greater at altitudes of 13,200 feet or more. The disturbance is thought to be caused by diminished oxygen levels and accompanying changes in respiration.
Most people adjust to new altitudes in approximately two to three weeks.
As mentioned, certain behaviors can help your body better adjust to new time zones and surroundings. Although there are no guarantees to a fast and sound sleep, simple adjustments in your behavior when traveling may help you get the quality of rest needed to start the day refreshed. In addition, many people use prescription drugs. While pills do not resolve the biological imbalance caused by jet lag, they may help manage short-term insomnia brought on by travel. Be sure to discuss the use of sleeping pills with your doctor before you try them.