Table 1.

Sleep hygiene advice.

•   Avoid caffeinated drinks during the last hours before bedtime (coffee, tea, cola).

•   Avoid smoking/nicotine during the last hours before bedtime.

•   Avoid alcohol as a sleep aid.

•   Avoid going to bed hungry, but do not consume a heavy meal before bed.

•   Keep the bedroom dark, quiet, and with moderate temperature. If necessary, use mask and earplugs.

•   Regular exercise is good, but do not exercise during the last hours before bedtime.