Avoid alcohol or caffeine at least three to four hours before bedtime. Both act as stimulants and prevent sleep. Avoid any heavy exercise close to bedtime. Bring earplugs and blindfolds to help dampen noise and block out unwanted light while sleeping. Try to get outside in the sunlight whenever possible.
Daylight is a powerful stimulant for regulating the biological clock.
Bring elements or objects from home like a picture of a friend or loved one, favorite pillow, blanket or even a coffee mug to ease the feeling of being in a new environment. Check with the hotel to see if voice mail services are available to guests. Then, whenever possible, have your calls handled by the service. Check your room for potential sleep disturbances that may be avoided, such as light shining through the drapes, unwanted in-room noise, etc.