Think about how much preparation goes into an ordinary day. We plan our meals, organize our schedules, prepare for meetings, arrange transportation, and make time for the things we consider important. Even something as simple as going for a walk may involve checking the weather, choosing the right shoes, and deciding where we want to go. Preparation is so deeply woven into our daily routines that we rarely give it much thought.
Yet when it comes to sleep, one of the most important biological activities of our lives, preparation often amounts to little more than turning off the television and getting into bed.
We expect the body to make an immediate transition from the demands of waking life into the restorative processes of sleep, as though consciousness operates with an on-and-off switch. We may have spent the previous hour answering emails, watching the news, scrolling through our phones, or worrying about tomorrow, but once our head reaches the pillow, we expect the mind to become quiet and the body to settle into sleep.
For many people, that transition is anything but effortless.
Sleep expert Nancy Rothstein, known professionally as the Sleep Ambassador, has spent years encouraging people to reconsider their relationship with sleep. During a recent presentation to the American Academy of Physiological Medicine and Dentistry (AAPMD), she offered an observation that deserves more attention: We prepare for nearly everything we do, but we often fail to prepare for sleep.
Her point reaches beyond the familiar advice about avoiding caffeine or keeping the bedroom dark. It asks us to reconsider the relationship between our waking behavior and the biological processes that make restorative sleep possible.
We have become remarkably good at extending the day. Perhaps it is time to become better at ending it.
The Body Has Its Own Schedule
Human sleep is governed by biological systems that developed long before artificial lighting, electronic entertainment, and the modern workday. Our circadian rhythm helps coordinate periods of wakefulness and sleep, responding to environmental signals such as light and darkness. At the same time, the body’s need for sleep builds throughout the day, creating increasing pressure to rest.
These systems work together, but they do not operate independently of our behavior.
Exposure to bright light late in the evening can delay the body’s preparation for sleep. Irregular bedtimes and waking schedules can make it more difficult to maintain a consistent rhythm. Stress, stimulation, and activities that keep the mind engaged may interfere with the natural transition toward rest, even when we feel physically tired.
Consider the difference between feeling exhausted and feeling sleepy. Exhaustion may come from a demanding day, emotional strain, or prolonged mental activity. Sleepiness reflects the body’s increasing readiness to sleep. The two often occur together, but they are not interchangeable. Someone can feel completely worn out while remaining mentally alert, restless, or unable to settle down.
This helps explain why going directly from an active evening into bed does not always produce the result we expect. The body may be tired, but the conditions that support sleep have not necessarily been established.
In many ways, modern life asks our biology to accommodate a schedule it was never designed to follow. We have learned to manipulate light, extend our working hours, and remain connected to the world almost continuously. What we have not changed is the body’s fundamental need for regularity, restoration, and uninterrupted periods of sleep.
Preparing for sleep begins with respecting those biological requirements rather than expecting the body to overcome them.
Creating a Boundary Between Day and Night
There was a time when darkness provided a natural boundary between the activities of the day and the quiet of the night. Although sleep patterns have always varied across individuals and cultures, the absence of electric lighting placed practical limits on how long daily activities could continue.
Today, that boundary has largely disappeared.
We can work, shop, communicate, watch television, and consume information at any hour. The bedroom itself has become an extension of the living room and office, complete with televisions, phones, tablets, and other devices competing for our attention.
The problem is not simply the presence of technology. It is the absence of a meaningful transition between being active and being at rest.
A consistent evening routine can help restore that transition. Dimming the lights, reducing stimulating activities, putting electronic devices aside, or spending time reading can signal that the day’s demands are coming to an end. Some people find comfort in prayer or meditation. Others prefer gentle stretching, quiet conversation, or writing down the thoughts they would otherwise carry into bed.
The particular activity matters less than its purpose. A bedtime routine should reduce stimulation and help establish a predictable transition toward sleep, rather than becoming another demanding set of tasks to complete.
Rothstein describes this as creating a threshold between waking life and the night. It is an interesting way to think about sleep because a threshold marks a change in experience. We cross from one environment into another, leaving certain activities and expectations behind.
In practical terms, this means allowing the evening to become progressively quieter rather than expecting sleep to begin immediately after the last activity of the day.
For some people, that may require only a modest adjustment. For others, particularly those accustomed to working late or remaining constantly connected, it may involve reconsidering habits that have become so familiar they no longer seem unusual.
The objective is not to create a perfect evening. It is to give the body a reasonable opportunity to do what it already knows how to do.
What We Carry Into Bed
One of the less obvious obstacles to sleep is the accumulation of stress throughout the day.
Modern schedules leave surprisingly little room for reflection. We move from one responsibility to another, often filling the spaces between them with additional information or entertainment. When a difficult conversation, financial concern, family responsibility, or unresolved problem arises, we may postpone thinking about it because something else requires our attention.
Then bedtime arrives.
For the first time all day, there are no meetings to attend, messages to answer, or immediate responsibilities demanding our attention. The environment becomes quiet, but the mind does not necessarily follow. Thoughts that were easily ignored during the day suddenly become difficult to escape.
This experience is common enough that many people begin to associate bedtime with worry rather than rest. The harder they try to stop thinking, the more aware they become of their thoughts, and the frustration of being awake adds another layer of anxiety.
Addressing stress earlier in the day can sometimes help interrupt this pattern. A short period of reflection, a written list of tomorrow’s responsibilities, a conversation with someone we trust, or time spent dealing with an unresolved concern may reduce the likelihood that bedtime becomes the day’s first opportunity for mental processing.
None of these practices guarantees sleep, and people experiencing persistent insomnia may need more structured treatment. Their value lies in recognizing that our relationship with sleep begins long before we enter the bedroom.
The quality of the night is influenced, in part, by how we manage the hours that precede it.
The Difference Between a Sleep Routine and Healthy Sleep
There is an important distinction that often gets lost in conversations about better sleep habits.
Preparing for sleep can improve the conditions in which sleep occurs, but preparation cannot correct every problem that may interfere with it.
A person may follow a consistent schedule, avoid evening stimulation, maintain a comfortable bedroom, and practice relaxation techniques while still experiencing poor-quality sleep. They may fall asleep without difficulty and remain in bed for seven or eight hours, yet awaken feeling tired, unrefreshed, or mentally foggy.
When this happens regularly, the answer may not be another adjustment to the bedtime routine.
Sleep-disordered breathing is one possible explanation. During sleep, the muscles that help maintain an open upper airway relax. In some individuals, anatomical and physiological factors allow the airway to narrow or collapse, restricting airflow and sometimes causing repeated breathing interruptions.
The brain may respond to these disturbances with brief arousals that help restore breathing. A person may have little or no memory of these events, yet the interruptions can fragment sleep and interfere with its restorative functions.
Snoring, gasping, restless sleep, morning headaches, dry mouth, and persistent daytime fatigue can be clues that breathing deserves closer examination. None of these findings alone establishes a diagnosis, and not everyone with sleep-disordered breathing experiences the same symptoms.
This is where an airway-focused dental examination can contribute important information.
The structure of the jaws, palate, tongue, and surrounding oral tissues may provide clues about factors influencing upper-airway function. Tooth wear and signs of grinding can also prompt questions about sleep, although they are not reliable diagnostic markers of sleep apnea on their own.
Dentists trained to recognize these concerns can help identify patients who may benefit from appropriate medical sleep evaluation. Diagnosis and treatment decisions should then be guided by qualified professionals and the individual’s specific findings.
The larger lesson is that good sleep hygiene and healthy sleep physiology are related, but they are not the same thing.
We can improve the environment in which sleep takes place without necessarily correcting the biological conditions that determine its quality.
Learning to Listen to the Body
One consequence of our increasingly technological approach to health is that we sometimes become more interested in measurements than experiences.
We monitor sleep duration, estimate sleep stages, examine overnight heart rates, and compare one night’s results with another. These measurements can be useful, particularly when they help identify patterns or encourage healthier behavior. Yet they can also distract us from a more fundamental question: How do we actually feel?
Do we wake feeling restored? Are we alert throughout the day? Do we routinely need caffeine to overcome fatigue? Has someone noticed that we snore, gasp, or struggle to breathe during sleep? Are we waking repeatedly without understanding why?
These observations are not substitutes for medical testing, but they provide important context that a consumer sleep score may not capture.
A person who receives reassuring numbers from a wearable device but continues to experience significant fatigue should not assume everything is normal. Likewise, someone whose sleep tracker reports an imperfect night should not automatically conclude that something is wrong.
The purpose of paying attention to sleep is to understand our health, not to become preoccupied with achieving a particular score.
Rothstein makes an important point about this relationship. We already possess the biological machinery necessary for sleep. Technology may help us understand certain aspects of that process, but it does not replace the body’s own systems or the need to investigate genuine health concerns.
Sometimes the most useful information comes from recognizing that we no longer feel the way we should after a night’s rest.
Giving Sleep the Respect It Deserves
Perhaps the most meaningful change we can make is to stop treating sleep as whatever time remains after everything else has been completed.
Sleep is not simply a pause between productive days. It is an active biological process involved in memory, learning, immune regulation, emotional health, metabolism, and the restoration of tissues throughout the body. The quality and continuity of sleep matter because much of this work depends on the normal progression through different sleep stages.
When we repeatedly shorten, delay, or disrupt sleep, we interfere with processes that support our health during the hours we are awake.
Preparing for sleep is therefore not an indulgence or an elaborate wellness practice. It is a practical acknowledgment that the body needs appropriate conditions to carry out essential functions.
That preparation may begin with something as simple as establishing a consistent waking time, allowing the evening to become quieter, or deciding that the phone does not belong beside the pillow. It may involve learning to manage stress before bedtime rather than carrying every unresolved concern into the night.
For others, preparation must include something more important: recognizing that persistent snoring, breathing disturbances, or unrefreshing sleep deserve professional evaluation rather than another attempt to improve sleep habits.
Both approaches begin with the same principle. Sleep deserves our attention, but not our constant interference.
We cannot control every aspect of the night, and trying to do so may only make sleep more elusive. What we can do is create conditions that respect our biology, recognize when something may be interfering with it, and give the body an opportunity to restore itself.
We spend much of our waking lives preparing for what comes next. Perhaps one of the most valuable preparations we can make is learning how to bring the day to a proper close.
Because a better night’s sleep often begins long before we close our eyes.
The Johnson Papers explores the connections between oral health, breathing, sleep, and whole-body wellness through the perspective of biological dentistry.
This article draws on themes presented by sleep expert Nancy Rothstein during an American Academy of Physiological Medicine and Dentistry webinar. The discussion has been expanded to explore the relationship between sleep habits, airway health, and biological dentistry.