Herbie Murray
Sleep restriction therapy (SRT) is a common treatment for insomnia. It is a non-pharmacological approach that aims to improve sleep quality and efficiency by restricting the amount of time spent in bed. The core idea behind SRT is that limiting time in bed will help individuals associate it with sleep rather than wakefulness, thereby improving overall sleep outcomes. This method can be used as a standalone therapy or in conjunction with cognitive behavioural therapy for insomnia (CBT-i). While SRT can be highly effective, it is not a quick fix and requires several weeks of diligence and commitment to a strict sleep schedule.
| Characteristics | Values |
|---|---|
| Goal | To improve sleep efficiency by reducing the time a person spends awake in bed |
| Target group | People with chronic insomnia |
| Treatment type | Non-pharmacological, behavioural treatment |
| Treatment duration | 2-8 weeks, but no fixed time frame |
| Treatment steps | Keep a sleep diary, calculate average sleep time, set bedtime and wake-up time, avoid naps, create a cosy sleeping environment |
| Precautions | Not recommended for people in certain occupations, e.g. transportation, construction, healthcare |
| Side effects | Initial sleep deprivation, increased daytime sleepiness, difficulty sticking to the schedule |
| Effectiveness | Can be effective in the short term, but not for everyone |
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What You'll Learn
Sleep restriction therapy is a treatment for insomnia
Sleep restriction therapy (SRT) is a treatment for insomnia that does not involve the use of drugs. It is a non-pharmacological approach that can be used as a standalone therapy or in conjunction with cognitive behavioural therapy for insomnia (CBT-i). The main goal of SRT is to improve sleep efficiency by limiting the amount of time spent in bed, thereby increasing the association between bed and sleep, and reducing the negative thoughts and worries associated with trying to fall asleep.
Before starting SRT, a sleep coach or therapist may recommend keeping a sleep diary for one to two weeks. This diary helps to record total sleep time each night and identify factors that may disturb sleep. The data from the diary is then used to calculate the average total sleep time per week, which becomes the initial sleep window. For example, if a person averages 6 hours of sleep per night, their sleep window will be restricted to 6 hours.
The time in bed can then be gradually increased, but this should be done slowly, with increments of 15 to 30 minutes at a time. It is recommended to wait at least a week between each addition, ensuring that wakefulness in the middle of the night remains minimal. The decision to extend the time in bed is based on the percentage of time slept relative to the time spent in bed, known as the sleep efficiency score. If the average sleep efficiency is 85% or higher, the time in bed is extended, if it is below 80%, the time is further restricted, and if it is between 80-85%, the time remains unchanged.
SRT is widely prescribed to people with chronic insomnia and is generally considered safe. However, it may cause increased daytime sleepiness, especially in the early stages of treatment. As such, it may not be suitable for those in occupations such as transportation, construction, or healthcare, where sleep deprivation could lead to dangerous situations. It is always recommended to consult with a doctor or sleep specialist before beginning SRT to ensure it is an appropriate treatment for the individual.
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It is a non-pharmacological approach
Sleep restriction therapy (SRT) is a non-pharmacological approach used to treat chronic insomnia and other sleep disorders. It is a behavioural treatment that does not involve medication. Instead, it focuses on restricting the amount of time spent in bed to improve overall sleep quality. The core idea is that by limiting the time spent in bed, individuals can start to associate their bed with sleep rather than wakefulness, leading to better sleep outcomes.
SRT is often used in conjunction with cognitive behavioural therapy for insomnia (CBT-i). It is a common feature of virtually all types of CBT-i and can be an effective standalone treatment for insomnia. It is usually the first line of treatment for insomnia and can also be used to treat other conditions. One study found that shift workers who used SRT in online and outpatient settings experienced improved sleep efficiency.
Before starting SRT, individuals are advised to keep a sleep diary for one to two weeks. They record their total sleep time and the time spent in bed each day. This information is used to calculate the average total sleep time per week, also known as the sleep window. The sleep window is the amount of time a person should spend in bed, equal to their average total sleep time. For example, a person who sleeps an average of six hours per night should restrict their time in bed to six hours.
The goal of SRT is not to reduce sleep but to restrict and condense it so that a person is only in bed for as long as needed for sleep. This helps to align a person's behaviours with their body's natural circadian rhythm. Over time, as wakefulness in the middle of the night remains minimal, the time spent in bed can be gradually increased by 15 to 30 minutes. This process is done slowly, adding only 15 minutes at a time, and waiting at least a week between each addition.
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It works by limiting time in bed to improve sleep efficiency
Sleep restriction therapy (SRT) is a non-pharmacological approach used to treat chronic insomnia and other sleep disorders. The core idea behind this therapy is to limit the amount of time spent in bed to improve sleep quality and increase sleep efficiency. It is a common treatment for insomnia and is generally considered safe.
The main concept is that the more time insomniacs spend in bed, the less time they spend asleep. Sleep restriction is designed to correct this imbalance. This method works to increase sleep efficiency by restricting the time spent in bed, helping individuals start to associate the bed with sleep rather than wakefulness.
To begin sleep restriction therapy, a sleep diary or a sleep-tracking app is maintained for at least a week to calculate the average sleep efficiency scores. This information is then used to adjust sleep windows accordingly. The initial time in bed is usually the average nightly total sleep time over the last week. However, the time allowed in bed should not be less than 5.5 hours, even for people who sleep less than that per night.
Once the sleep window is set, it is important to stick to the schedule and make very gradual time extensions. It is also advised to avoid napping during the day as it can make sleep restriction less effective.
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It helps to recalibrate your sleep schedule
Sleep restriction therapy (SRT) is a common treatment for insomnia and other sleep disorders. It is a non-pharmacological approach that does not aim to restrict sleep but rather to restrict the time spent awake in bed. By limiting the amount of time spent in bed, individuals can start to associate the bed with sleep rather than wakefulness, leading to better sleep outcomes. This helps to recalibrate one's sleep schedule, making it easier to fall asleep and stay asleep through the night.
SRT is often used in conjunction with cognitive behavioral therapy for insomnia (CBT-i). It is a behavioural treatment that addresses the pattern of worrying and negative thoughts about sleep. The idea is that by limiting the time spent awake in bed, individuals can shorten the time it takes to fall asleep and improve their overall quality of sleep. This treatment plan includes steps like identifying and replacing negative thoughts about sleep and reshaping one's feelings and behaviours about sleep.
To begin SRT, it is recommended that individuals keep a sleep diary for 1-2 weeks to record their total sleep time and time spent in bed. This information is used to calculate the average total sleep time per week, which then becomes the initial sleep window. For example, if an individual averages 6 hours of sleep per night, their sleep window would be restricted to 6 hours.
Gradually, the time spent in bed can be extended by 15-30 minutes, as long as wakefulness in the middle of the night remains minimal. Each new extension of time in bed is followed for at least a week before progressing. The decision to extend the time in bed is based on the percentage of time slept relative to the time spent in bed, known as sleep efficiency. If the average sleep efficiency is 85% or more, the time in bed is extended, if it is below 80%, the time in bed is further restricted.
It is important to note that SRT takes time and commitment to be effective, generally requiring 2-8 weeks of consistency and diligence in following the sleep schedule. It is also crucial to avoid napping during the day, as it can reduce the effectiveness of the treatment. While SRT is widely prescribed and considered safe, it may not be suitable for everyone, especially those in certain occupations where sleep deprivation could lead to dangerous situations.
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It is often used with cognitive behavioural therapy
Sleep restriction therapy (SRT) is a non-pharmacological approach used to treat chronic insomnia and other sleep disorders. It is a common treatment for insomnia and is often used in conjunction with cognitive behavioural therapy for insomnia (CBT-i). This combination of treatments helps to address the difficulty of staying asleep.
SRT works by limiting the amount of time spent in bed, with the aim of improving sleep quality and increasing sleep efficiency. By restricting the time spent in bed, individuals can start to associate the bed with sleep rather than wakefulness, leading to better sleep outcomes. It is important to note that the goal of SRT is not to reduce sleep but to restrict and condense it so that one is only in bed for as long as needed for sleep. This way, personal behaviours align better with the body's natural circadian rhythm.
To begin SRT, a sleep diary or a sleep-tracking app is used to record an individual's sleep patterns over at least one to two weeks. This information is then used to determine the average number of hours of nightly sleep and to set a bedtime that allows for only that average number of hours. The initial time in bed is usually the average nightly total sleep time over the last week, and it should not be less than 5.5 hours.
After the initial period of SRT, the time spent in bed can be gradually increased in increments of 15 to 30 minutes, as long as wakefulness in the middle of the night remains minimal. This decision to extend the time in bed is based on the percentage of time slept relative to the time spent in bed, or the sleep efficiency score. If the average sleep efficiency is 85% or more, then the time in bed is extended. If it is below 80%, then the time in bed is further restricted.
SRT is generally considered safe, but it may cause sleepiness, so it may not be appropriate for everyone. It is not recommended for people in certain occupations, such as transportation, construction, and healthcare, as they might put themselves or others in danger if they attempt to work while sleep-deprived. It is also important to note that SRT is not a quick fix and it may take several weeks of consistency and commitment to see positive effects.
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Frequently asked questions
Sleep restriction therapy (SRT) is a non-pharmacological approach used to treat chronic insomnia and other sleep disorders. It is a common treatment for insomnia and is often used in conjunction with cognitive behavioural therapy for insomnia (CBT-I).
The core idea behind SRT is to limit the amount of time spent in bed to improve sleep quality and increase sleep efficiency. By restricting the time spent in bed, individuals can start to associate the bed with sleep rather than wakefulness, leading to better sleep outcomes.
Before starting sleep restriction therapy, a sleep coach or therapist will recommend that you use a sleep diary to record your total sleep time each night for a period of 1 to 2 weeks. This is used to calculate the average total sleep time per week, or sleep window. Once this is determined, the individual restricts their time in bed each night to equal their average total sleep time.
There is no fixed time frame for sleep restriction therapy to work, but it generally takes about 2–8 weeks of consistency and commitment to sticking to the technique and a fixed sleep schedule. It is important to note that the first few weeks of SRT can lead to increased daytime sleepiness as the body adjusts to the new sleep schedule.
