Sleep hygiene: This is a psychoeducational intervention
containing basic information on sleep habits and
hygiene. It includes instructions for establishing regular
sleeping times; going to bed only when feeling sleepy
and not using the bed as a means of trying to sleep; not
spending the day worrying about sleeping time; having
control over time; avoiding the use of stimulants (coffee,
cigarettes, drugs, black tea, Coca-Cola and chocolate);
avoiding alcohol consumption before sleeping; and
avoiding high liquid consumption before sleeping. It includes
suggestions for dinner (light foods) not less than
two hours before going to sleep, and for regular physical
activity, preferably in the mornings. It evaluates the
bedroom conditions: comfort, temperature, noise, and
stresses the importance of having a bedroom that is silent,
aired, clean and organized