What Is My Sleep Animal?
Your sleep animal is the animal whose natural sleep style most closely matches the way you actually sleep: how well the night went, when you went to bed, how long you slept, and how deep it was. And unlike an online quiz, you don't have to guess: your Apple Watch already knows the answer.
Sleep animals vs. sleep chronotypes
You may have seen the four "chronotype animals" (bear, lion, wolf and dolphin) popularized by sleep medicine. A chronotype describes your biological tendency: lions are early risers, wolves are night owls, bears follow the sun, and dolphins are light, restless sleepers. Chronotype quizzes ask about your habits and give you one label for life.
A sleep animal, the way Lunomia uses the term, is more dynamic. Instead of one label from a questionnaire, each night gets matched to one of 25 animals based on measured data. A near-perfect night? That's a lion or a bear. A great night that started late? Hello, owl. A short, broken night looks more like a rabbit or a walrus. Over weeks, the animals you get most often reveal your true pattern: your data-driven chronotype.
How Lunomia determines your sleep animal
Every morning, Lunomia reads the night recorded by your Apple Watch (or any tracker that syncs with Apple Health) and chooses your animal in two steps. First, your Lunomia Score, a number from 0 to 100 for the night, picks one of five tiers. Then the shape of your night picks which animal inside that tier fits best:
- Your score comes first. Each of the five tiers has its own animals, so a night scoring 95 and a night scoring 30 can never be given the same one.
- Your hours come next. Inside the tier, animals whose usual sleep length is far from your hours drop down the ranking.
- Your stage mix decides the rest. The REM, deep and awake shares of your time in bed are compared with the animals that are left.
- A few animals also watch the clock. The owl, the bat and the hedgehog gain an edge when you fall asleep inside their window.
The five tiers, and the 25 animals that live in them:
- Radiant night (95 to 100): lion, bear, gorilla.
- Great night (80 to 94): cat, owl, koala, sloth, bat.
- Good night (60 to 79): raccoon, camel, arctic fox, meerkat, hedgehog, panda.
- Fair night (40 to 59): cow, giraffe, penguin, dolphin, crocodile, whale, seal.
- Rough night (0 to 39): elephant, rabbit, deer, walrus.
The animal tells you both things at once: the tier is how well you slept, and the species is what the night looked like. Each animal comes with an encyclopedia card: its scientific name, real sleep pattern, a fun fact, and its conservation status. (Did you know a cat spends about 70% of its life asleep?)
How to find your sleep animal tonight
- Download Lunomia free on your iPhone and allow Apple Health access.
- Wear your Apple Watch to bed with sleep tracking on (see our Apple Watch sleep tracking guide).
- Open Lunomia in the morning. Your night is analyzed and scored on your device, and your sleep animal is revealed.
- Check the Trends tab (Lunomia Pro) after a week to see your most common animals and what they say about your habits.
Tip: Don't judge yourself on one night. Your most frequent animal over 2–4 weeks is a far better picture of your sleep personality than any single quiz result.
What your most common animals mean
Lots of elephants, rabbits, deer or walruses means rough nights, so start with the basics: a consistent sleep schedule and fewer late screens. Owls and bats are great nights that simply started late; if you would rather sleep earlier, fix the timing and the lions and bears follow. Raccoons, camels and pandas are good nights with something left on the table, so check your sleep efficiency and evening habits. Lions, bears and gorillas? You're getting radiant nights. Keep doing what you're doing.
Meet your sleep animal tonight
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