CBT-I CBT-I Sleep Hygiene & Lifestyle Factors

Question 1

In CBT-I, sleep hygiene education is considered:

Accepted Answer

A necessary but insufficient standalone treatment for chronic insomnia

Answer

The primary active component of treatment

Answer

An optional add-on only for motivated patients

Answer

The most evidence-supported individual component

Question 2

Caffeine has a half-life of approximately:

Accepted Answer

5-6 hours

Answer

1-2 hours

Answer

3-4 hours

Answer

10-12 hours

Question 3

The recommended cut-off time for caffeine consumption in patients with insomnia is generally:

Accepted Answer

At least 6 hours before bed

Answer

Within 1 hour of bedtime

Answer

Only with meals

Answer

No earlier than 8 PM

Question 4

Alcohol's effect on sleep architecture is best characterized as:

Accepted Answer

Reducing sleep onset latency but fragmenting sleep in the second half of the night

Answer

Increasing slow-wave sleep throughout the entire night

Answer

Suppressing NREM sleep and promoting REM sleep

Answer

Having no significant effect on sleep staging

Question 5

The optimal bedroom temperature for sleep is approximately:

Accepted Answer

60-67°F (15-19°C)

Answer

50-55°F (10-13°C)

Answer

72-75°F (22-24°C)

Answer

78-80°F (25-27°C)

Question 6

Evening exposure to blue light from screens disrupts sleep primarily by:

Accepted Answer

Suppressing melatonin secretion via retinal photoreceptors

Answer

Increasing cortisol levels

Answer

Activating slow-wave sleep inhibition pathways

Answer

Reducing adenosine buildup