Why Sleep Less to Sleep Better? Understanding Sleep Restriction to Improve Insomnia

Photo by Alexandra Gorn on Unsplash downloaded 10/7/24

Have you ever found yourself lying in bed, staring at the ceiling, wondering why you just can’t seem to fall asleep? Or maybe you drift off only to wake up hours before your alarm, frustrated and tired. If you’ve tried everything from warm baths to counting sheep and still can’t seem to get a good night’s rest, it might be time to try something a little different: sleep restriction.

Now, I know the idea of restricting sleep might sound a little counterintuitive—after all, isn’t the goal to sleep more? But stay with me, because sleep restriction is actually a powerful tool used in Cognitive Behavioral Therapy for Insomnia (CBTi) to help you reset your sleep patterns and finally get the rest you deserve.

What is Sleep Restriction and How Does it Work?

Sleep restriction is a technique used in CBTi that helps people with insomnia by limiting the amount of time they spend in bed to the actual amount of time they’re sleeping. The goal is not to deprive yourself of sleep, but rather to build a stronger and more consistent sleep pattern. When you’re spending a lot of time in bed but only sleeping for a portion of that time, your body starts to associate being in bed with being awake. This can create a negative cycle where your bed becomes a place of restlessness rather than relaxation.

Sleep restriction helps break this cycle by reducing the amount of time you spend in bed to match the amount of sleep you’re actually getting. For example, if you’re only sleeping five hours a night, you would limit your time in bed to those five hours. This increases sleep pressure, meaning your body becomes more eager to sleep during the limited time you allow yourself in bed. Over time, this process helps to increase your sleep efficiency, which is the percentage of time you spend in bed actually sleeping. As your sleep efficiency improves, you gradually increase the amount of time you spend in bed, which can lead to longer, more restful sleep.

Why Would I Want to Restrict My Sleep if I'm Already Tired?

It’s completely natural to feel skeptical about the idea of restricting sleep when you’re already feeling exhausted. After all, when you’re tired, it seems logical to spend as much time in bed as possible. However, spending too much time in bed awake can actually reinforce insomnia and make it harder to get a good night’s sleep.

When you lie in bed tossing and turning, your brain starts to associate the bed with frustration, worry, and wakefulness instead of relaxation and sleep. This negative association can make it even more difficult to fall asleep in the future. Sleep restriction works by breaking this negative association and strengthening the connection between your bed and sleep. By limiting the time you spend in bed, you increase the pressure to sleep, which makes it easier to fall asleep quickly and stay asleep throughout the night. Over time, this leads to better quality sleep and a more restful night, even if you initially spend less time in bed.

How Do I Start a Sleep Restriction Program?

Starting a sleep restriction program requires careful planning and a commitment to consistency. The first step is to begin by tracking your sleep patterns for a week or two. Keeping a sleep diary can help you gather information about when you go to bed, when you wake up, how long it takes you to fall asleep, and how often you wake up during the night. This information will be crucial in determining how to tailor the sleep restriction process to your specific needs.

Once you have a good understanding of your sleep patterns, the next step is to calculate your sleep efficiency. Sleep efficiency is calculated by dividing the total time you spend sleeping by the total time you spend in bed, and then multiplying that by 100 to get a percentage. For example, if you spend eight hours in bed but only sleep for five hours, your sleep efficiency would be 62.5%. Ideally, you want your sleep efficiency to be above 85%, which indicates that most of the time you spend in bed is actually spent sleeping.

Based on your sleep diary, you can then determine your initial sleep window—the amount of time you’ll allow yourself to be in bed. For instance, if you’re sleeping an average of five hours each night, you would set your sleep window to five hours, such as from midnight to 5 a.m. It’s important to stick to the same sleep and wake times every day, including weekends, to help regulate your body’s internal clock.

As your sleep efficiency improves, meaning you’re spending more of your time in bed actually sleeping, you can gradually increase your sleep window by 15 to 30 minutes at a time. Continue monitoring your sleep efficiency and adjust your sleep window as needed to ensure you’re getting the most benefit from the process.

What Should I Expect During Sleep Restriction?

Photo by Claudia Mañas on Unsplash downloaded 10/7/24

Starting a sleep restriction program can be challenging, especially during the first few weeks. It’s important to set realistic expectations and prepare yourself for the possibility of feeling more tired during the day as your body adjusts to the new routine. The first week or two may be particularly tough, as your sleep pressure builds and you get used to the restricted sleep window. You might also experience some anxiety about the idea of restricting your sleep, which is completely normal.

As you continue with the program, you’ll likely start to notice that you’re falling asleep more quickly and waking up less frequently during the night. This is a sign that your body is beginning to associate your bed with sleep again, rather than wakefulness. Over time, the connection between your bed and sleep will strengthen, leading to better sleep quality. It’s important to be patient and give yourself time to adjust, as the ultimate goal is to achieve more restful sleep in the long run.

Are There Any Risks or Side Effects to Sleep Restriction?

While sleep restriction can be a highly effective tool for improving sleep, it’s not without its challenges. One of the most common side effects is increased daytime sleepiness, especially in the early stages of the program. This can affect your ability to concentrate and may pose safety risks, particularly when driving or operating heavy machinery. It’s important to start sleep restriction gradually and avoid situations that require intense focus or alertness during the initial stages of the program.

Another potential challenge is the emotional discomfort that can come with restricting your sleep. It’s normal to feel anxious or frustrated about limiting your time in bed, especially if you’re already struggling with fatigue. However, these feelings are often temporary and will subside as your sleep improves.

Before starting sleep restriction, it’s a good idea to talk to a healthcare professional, especially if you have other health conditions or concerns. They can help you determine if sleep restriction is appropriate for you and provide guidance on how to safely implement the program.

Can Sleep Restriction Help with Other Sleep Issues?

While sleep restriction is primarily used to treat insomnia, it can also be beneficial for addressing other sleep issues, such as waking up too early or experiencing fragmented sleep. By resetting your sleep-wake cycle and improving sleep efficiency, sleep restriction can help you develop a more consistent sleep pattern.

In addition to sleep restriction, CBTi may include other techniques such as stimulus control and cognitive restructuring. Stimulus control involves creating a strong association between your bed and sleep by only using your bed for sleep and getting out of bed if you can’t fall asleep within 20 minutes. Cognitive restructuring involves changing negative thoughts and beliefs about sleep that may be contributing to your insomnia. Together, these strategies can help you develop healthier sleep habits and improve your overall sleep quality.

How Do I Know if Sleep Restriction is Working?

Photo by Greg Pappas on Unsplash downloaded 10/7/24

Monitoring your progress is key to determining whether sleep restriction is working for you. One of the most important indicators of success is improved sleep efficiency. If you notice that you’re spending more time in bed actually sleeping, rather than lying awake, it’s a good sign that sleep restriction is helping. You may also notice that you’re waking up less frequently during the night and falling back asleep more easily, which indicates that your sleep quality is improving.

Another sign that sleep restriction is working is an overall increase in your feeling of restfulness during the day. As your sleep improves, you should start to feel more rested and energized, which can lead to better mood, focus, and productivity.

It’s important to be patient and give sleep restriction time to work. While some people may see improvements within a few weeks, it may take longer for others. Consistency is key, so stick with the program and continue to monitor your progress.

Sleep restriction may seem counterintuitive at first, but it’s a powerful tool for improving sleep quality and overcoming insomnia. By limiting the amount of time you spend in bed to match the amount of time you’re actually sleeping, you can reset your sleep-wake cycle and build a stronger, more consistent sleep pattern. While the process may be challenging at first, the ultimate goal is better, more restful sleep that can improve your overall quality of life.

Insomnia Therapy in Missouri

If you’re struggling with insomnia or other sleep issues, sleep restriction might be the solution you’ve been looking for. Aspire Counseling is here to help. Our experienced therapists can guide you through the process of sleep restriction and other CBTi techniques, helping you achieve the restful sleep you deserve. We offer services at our offices in Lee's Summit and Columbia, MO, or online to anyone in the state of Missouri. Contact us today to schedule a session and take the first step toward better sleep and improved well-being. Remember, you don’t have to face sleep challenges alone—support is available, and a better night’s sleep is within reach.