According to a report by the British "Daily Mail" on September 11, sleep doctor Michael Buehler has classified sleep into four categories based on different sleep characteristics.

He has named these categories after animals that exhibit similar sleep traits.

This classification helps individuals understand their sleep patterns and self-regulate to get adequate rest, ultimately improving their overall well-being.

With the increasing prevalence of high-tech commodities, the biological clock that people have maintained for centuries is being disrupted, leading to a significant decline in sleep quality. The blue light emitted by smartphones, computers, and other devices interferes with the natural production of melatonin, the hormone responsible for regulating sleep. This disruption makes it difficult for many people to fall asleep and stay asleep, leading to chronic sleep deprivation and associated health problems.

However, everyone has a primal need for sleep. This need is influenced by personality, genes, and biological clocks. Fortunately, Dr. Buehler, drawing on over 15 years of clinical experience, has identified four sleep categories—dolphins, lions, bears, and wolves—based on habitual characteristics. By making a few lifestyle changes tailored to these categories, people can achieve more restful and rejuvenating sleep.

Dolphin Sleep

Dolphins sleep with one half of their brain at a time, keeping the other half alert to potential dangers. Similarly, people with dolphin sleep are light sleepers and easily disturbed by their environment. These individuals often wake up multiple times during the night and struggle to achieve deep sleep. They are often nervous, quick thinkers, and perfectionists with fast metabolisms, typically resulting in slim bodies. Their heightened alertness and sensitivity can be both a strength and a challenge.

For dolphins, maintaining a consistent sleep schedule is crucial. Waking up at 6:30 a.m. and going to bed at 11:30 p.m. helps regulate their internal clock. A nutritious breakfast in the morning, a cup of coffee at noon to boost alertness, and a substantial dinner can help them stay balanced. Regular exercise and recreational activities, such as yoga or meditation, are essential to manage stress levels and promote relaxation. Additionally, creating a sleep-friendly environment by minimizing noise and light can significantly improve sleep quality for dolphins.

Lion Sleep

Lions are natural leaders, thoughtful, energetic, and always alert once awake. Many CEOs, entrepreneurs, and high-achievers share these traits, waking up early, staying up late, and maintaining optimism but engaging in little daily social interaction. Their proactive nature and high energy levels enable them to accomplish a great deal, but it can also lead to burnout if not managed properly. A regular, balanced diet is key to keeping lions in good shape.

For lions, an ideal day starts at 5:30 a.m. and ends with rest at 10:30 p.m. Nutritionally balanced meals, including a high-protein breakfast, a well-rounded lunch, and a light dinner, ensure they have sustained energy throughout the day. Incorporating regular physical activities such as jogging or strength training helps them maintain their vigor and mental clarity. Lions should also make time for relaxation and hobbies to avoid overexertion and maintain their mental health.

Bear Sleep

Half of all people fall into the bear sleep category. Bears are typically active during the day and rest at night, leading comfortable and peaceful lives compared to lions. Bears need at least eight hours of steady sleep and are sociable, open-minded, and often surrounded by friends. Their strong desire for sleep makes them adhere to a more conventional sleep schedule, allowing for better rest and recovery.

Bears typically wake up at 7:00 a.m. and go to bed at 11:00 p.m. A high-protein breakfast, carbohydrate-rich lunch, occasional snacks, and a balanced dinner help maintain their full, rounded bodies. A hot bath in the evening relaxes their body and mind, preparing them for a good night’s sleep. For bears, it’s essential to stay active and engage in regular physical exercise such as walking, swimming, or team sports to maintain their overall health and well-being. Social interactions and spending time with loved ones also contribute to their happiness and emotional balance.

Wolf Sleep

Wolves are nocturnal creatures, active only at night. People with wolf sleep patterns often struggle to wake up early, wasting productive morning hours. They are most alert and productive in the evening and late at night. For wolves, waking up around 7:30 a.m. and going to bed at midnight is ideal. They often crave sweets and fatty foods and may be slightly overweight. Their preference for late-night activities can lead to unhealthy habits if not managed properly.

To maintain a healthy lifestyle, wolves should focus on incorporating a balanced diet that includes lean proteins, vegetables, and whole grains, while moderating their intake of sweets and fatty foods. A combination of walking and exercise, such as evening workouts or late-night gym sessions, keeps wolves healthy and happy. Enjoying night life is fine, but moderation is key to avoid disrupting their overall well-being. Creating a relaxing bedtime routine and limiting exposure to screens before bed can help improve their sleep quality.

By understanding and embracing these sleep categories, individuals can make informed choices about their daily routines and lifestyle habits to enhance their sleep quality and overall health. Dr. Buehler's classification offers valuable insights into the diverse ways people experience sleep and provides practical solutions for achieving a fuller, more restful sleep.