New hedgehog owners are often convinced something is wrong with their pet. It barely moves. It’s asleep when you check in the morning. It’s asleep when you check at noon. Still asleep at three in the afternoon. You peer into the enclosure, give the hide a gentle nudge, and it huffs at you from inside — deeply unimpressed at the interruption. Nothing is wrong. You just have a hedgehog, and understanding how long do hedgehogs sleep is one of the first things that will save you a lot of unnecessary worry.
So How Long Do Hedgehogs Sleep Exactly?
The honest answer is: a lot. According to The Vet Desk’s vet-verified hedgehog sleep guide, pet hedgehogs typically sleep between 12 and 18 hours a day, with 14 hours being a reasonable average under normal conditions. ExoPetGuides puts the range at 12 to 16 hours in a standard 24-hour cycle, concentrated almost entirely through daylight hours. Some hedgehogs push that higher — particularly during cold weather or in the weeks following a lot of physical activity.
Baby hedgehogs, known as hoglets, sleep even more. In their first few weeks of life, hoglets can sleep upwards of 20 hours a day, as noted by Home & Roost’s hedgehog sleeping habits guide. This is not cause for concern — sleep is when growth happens, and young hedgehogs are doing an enormous amount of developing in a very short time.
The key thing to understand is why the numbers are so high. Hedgehogs are nocturnal animals who evolved to forage for food — running several kilometres in a single night in the wild — while most of their predators are inactive. Their bodies are built for intense bursts of nocturnal activity followed by long daytime rest. Expecting a hedgehog to be alert and engaged during daylight hours is a bit like expecting a night-shift worker to be at their best at 10am. It isn’t going to happen, and trying to force it causes stress. You can read more about the full picture of nocturnal hedgehog behaviour in our guide on are hedgehogs nocturnal.
What Affects How Long They Sleep
The 12–18 hour range isn’t fixed — several factors pull it up or down, and understanding them helps you read your own hedgehog’s behaviour more accurately.
Temperature is the biggest variable. Hedgehogs are extremely sensitive to ambient temperature, and a cooler environment pushes sleep duration up significantly. According to Floofmania’s hedgehog sleep analysis, hedgehogs in colder conditions can sleep up to 18 hours a day — their bodies slow down in response to the cold in a way that extends rest time. This is also why temperature management in the enclosure matters so much. The ideal range for a pet hedgehog’s environment is 72–80°F (22–27°C). Our guide on do hedgehogs need heat lamps walks through how to maintain that range reliably.
Age plays a clear role, as noted above. Hoglets sleep the most; older adult hedgehogs may sleep slightly less, though the difference in healthy animals is generally modest.
Season matters too, even indoors. Changes in natural light levels through the year — shorter winter days, longer summer days — can influence sleep patterns through windows and ambient light in the room. Some hedgehogs are more sensitive to these seasonal cues than others.
Activity level affects how much rest a hedgehog needs to recover. A hedgehog that runs enthusiastically on its wheel for several hours overnight will often sleep more deeply and for longer the following day. This is entirely normal and actually a positive sign — it means your hedgehog is getting good exercise.
Stress and illness can also alter sleep patterns, though in different directions. A stressed hedgehog may sleep more as a withdrawal response, while certain illnesses can cause lethargy that mimics normal sleep. The section below on when to worry covers how to tell the difference.
Where Hedgehogs Sleep
Wild hedgehogs are careful about where they rest — a sleeping hedgehog is a vulnerable one, and choosing a well-concealed spot is as instinctive as sleeping itself. Pet hedgehogs carry the same instinct, which is why most strongly prefer a covered hide or sleeping pouch over sleeping in an open area of the enclosure.
A dark, enclosed space replicates the leaf piles, log hollows, and thick undergrowth that wild hedgehogs favour as sleeping sites. Providing one isn’t just about comfort — it’s about giving your hedgehog the sense of security they need to sleep properly and deeply. A hedgehog that doesn’t have adequate cover may sleep lighter and for shorter periods, and may be more easily startled during rest. Our where do hedgehogs sleep guide covers the options in detail, and our best hedgehog sleeping bag recommendations are a practical starting point for setting up the right environment.
Bedding also matters. It should be absorbent, unscented, and deep enough that your hedgehog can burrow slightly if they want to. Our guide on best hedgehog bedding covers which materials work well and which to avoid.
Normal Sleep Versus Something to Worry About
This is the part that genuinely matters for hedgehog owners, and it’s worth reading carefully. The line between a hedgehog sleeping normally and a hedgehog in medical trouble can look similar from the outside — both involve an animal that isn’t moving. Knowing the difference can save your hedgehog’s life.
Normal deep sleep looks like a hedgehog curled up or stretched out in their hide, warm to the touch, breathing at a slow but visible rate. If you gently pick them up, they’ll respond — huffing, squirming, balling up in irritation. A sleeping hedgehog still reacts to being handled. Their body will feel warm, and their muscle tone will be relatively normal even when curled.
Torpor is the danger zone. As Chewy’s veterinary guide on hedgehog health signs explains, hedgehogs will enter a state of torpor if their environmental temperature drops below 65–70°F (18–21°C). Torpor resembles hibernation — the hedgehog’s body temperature drops, heart rate plummets from a healthy 180–280 beats per minute down to as low as 2–50 bpm according to Heavenly Hedgies’ hibernation symptoms guide, and breathing slows to barely perceptible intervals. A hedgehog in torpor will feel cold to the touch, will be difficult or impossible to rouse, and won’t huff or react when handled.
This distinction is critical because pet hedgehogs — unlike their wild counterparts — are not physiologically equipped to hibernate safely. As Millermeade Farm’s Critter Connection explains, captive-bred hedgehogs have largely lost the ability to recover from true hibernation, and a pet hedgehog that enters torpor is in a genuine medical emergency. It needs to be warmed immediately and seen by a vet as soon as possible.
The practical checklist:
- Warm body + reacts when handled = sleeping normally. Leave them alone.
- Cold body + no reaction to handling + barely visible breathing = torpor. Warm them gently — hold them against your body, wrap them in a warm fleece, use a heating pad set to low under one side of the enclosure — and contact an exotic vet immediately.
- Normal temperature + unusual lethargy + not eating overnight = possible illness. Monitor closely and contact a vet if it persists beyond 24 hours.
Our article on do hedgehogs hibernate covers the hibernation and torpor distinction in much more detail, and is essential reading for any hedgehog owner heading into winter.
Should You Wake Your Hedgehog Up During the Day?
The short answer is: rarely, and gently. Regularly disturbing a hedgehog’s daytime sleep raises their stress levels, can make them more defensive and harder to handle over time, and goes against their natural biology. A hedgehog that is consistently woken during its rest period is a hedgehog that isn’t getting the recovery it needs — the same way a person on a night shift being woken repeatedly during the day wouldn’t perform well or feel their best.
That said, a brief, gentle interaction during the day — letting your hedgehog sniff your hand, offering a treat, or picking them up softly without forcing them fully awake — is generally tolerable for most well-socialised hedgehogs. The key is gentle and infrequent. If you want meaningful time with your hedgehog, the hour or two after they naturally wake in the evening is far more productive for both of you.
If you’ve never had a hedgehog before and are still building your understanding of what ownership actually involves day-to-day, our guide on are hedgehogs good pets covers the full picture honestly, including the reality of owning a pet that’s most active when you’re winding down for the night.
Setting Up the Right Sleep Environment
Given how much of a hedgehog’s life is spent sleeping, getting the sleep environment right matters more than most owners initially realise. A few things make a significant difference:
Darkness during the day. Hedgehogs sleep better in a dark or dim environment. If the enclosure is in a bright room, the hide should be genuinely dark inside — a fabric sleeping pouch or solid-sided hide works much better than an open or mesh-sided structure.
Consistent temperature. Maintain 72–80°F consistently. Drops at night — when the heating goes off, for example — are a common trigger for torpor attempts. A thermostat-controlled heat source removes the guesswork. Our best hedgehog thermostat guide covers the options.
Low noise. Hedgehogs are sensitive to sound during sleep and will startle easily if the enclosure is near a television, a frequently used door, or a room that gets loud during the day. A quieter location in the home, away from foot traffic, supports better rest.
A proper hide. As noted above, covered sleeping space is not optional — it’s essential for a hedgehog to feel secure enough to rest properly.
Conclusion
How long do hedgehogs sleep? Between 12 and 18 hours daily for most adults, up to 20 hours for hoglets, and heavily influenced by temperature, age, and season. That’s a lot of sleeping — but it’s entirely normal for an animal built around nocturnal activity and long daytime rest. The thing to watch for isn’t how much your hedgehog sleeps, but how they respond when disturbed: warm, huffing, and grumpy means all is well. Cold, limp, and unresponsive means act immediately.
Getting the sleep environment right is one of the most straightforward things you can do for your hedgehog’s health and wellbeing. Our best hedgehog products page has everything you need — from sleeping bags and hides to thermostats, heat lamps, and the bedding that makes a real difference to how well your hedgehog rests.