Sleep is something we often take for granted until we don’t get enough of it. A broken night or a few early mornings can leave us feeling flat, unfocused and just a little out of sorts. It’s easy to assume that horses are different, especially when we so often see them resting on their feet, but in reality, good quality sleep is just as important for them as it is for us.
Horses have evolved to sleep in a way that keeps them safe. As prey animals, they are designed to stay alert, which is why much of their rest happens in short, scattered periods throughout the day and night. They are what’s known as polyphasic sleepers, usually accumulating somewhere between four and seven hours of rest in total, often in brief, intermittent bouts rather than one long stretch.
You’ll have seen horses dozing while standing, head lowered, ears relaxed and one hind leg resting. This lighter sleep is made possible by a clever ‘stay apparatus’ in their legs, allowing them to switch off without lying down. It’s an essential survival mechanism, but it’s only part of the picture when it comes to equines and sleep.
Why lying down is essential for proper rest
For your horse or pony to fully switch off and recover, they need to lie down. REM (Rapid Eye Movement) sleep is the stage where deeper physical and mental restoration happens, and it can only be achieved when a horse is lying down or flat out. Most horses need 30 to 60 minutes of REM sleep each day, often taken in several short periods rather than all at once.
During REM sleep their muscles are repaired, the immune system is supported and the brain processes information from the day. It has a direct impact on how a horse feels, both physically and mentally.
When horses can’t lie down regularly, it can start to affect them quite quickly. They may seem tired, less willing or slightly unsettled. In more serious cases, ongoing sleep deprivation can lead to episodes of collapse, where exhaustion causes them to lose balance and fall. It’s something that can easily be mistaken for narcolepsy but is often linked to a lack of REM sleep.
What recent research is telling us
There’s been growing interest in equine sleep in recent years, and it’s starting to highlight just how closely it links to performance and learning.
A study from the University of Helsinki, reported by Horse & Hound in March 2026, found that horses getting more than 30 minutes of REM sleep performed better in learning tests than those who didn’t. What’s particularly interesting is how this showed up in their behaviour. Horses with enough REM sleep were more motivated and more willing to keep trying when faced with something new or challenging.
It’s something you might have noticed in your own horse, even if you weren’t sure why they were struggling with that training session. When a horse is well-rested, including vital REM sleep, everything tends to feel a little more straightforward. When they’re not, even simple schooling tasks can feel more challenging.
Creating the right conditions for your horse to rest
Because lying down makes a horse feel more vulnerable, some of them won’t do it unless everything around them feels right. Horses are far more likely to relax and lie down when they feel safe, and companionship plays a big part in that. Even in a stable, being able to see or touch noses with another horse can make a real difference.
Space is another important consideration, especially for draught breeds and taller warmbloods. A stable needs to allow a horse to lie down and get back up without hesitation and provide them with grip so they feel secure getting up. If it feels restrictive, many horses will simply choose to stay on their feet.
Comfort and grip underfoot are just as influential. A soft, supportive bed makes it far more appealing to lie down and stay there for long enough to reach that deeper stage of sleep. Heavier breeds, including draught breeds and cobs, might choose not to lie down without a supportive bed. Keeping the environment calm, with minimal disruption from noise and light, also helps support better rest.
It’s also worth thinking about physical comfort. Horses that are stiff or managing joint pain may avoid lying down simply because getting back up feels uncomfortable, which can have a knock-on effect on their overall sleep.
Supporting better sleep with Wood & Slumber
The right bedding can make a real difference to how willing a horse is to lie down. Wood & Slumber bedding is designed to create a comfortable, supportive base that encourages horses to settle properly. The small flake structure forms a stable, cushioned bed, helping them feel secure as they lie down and rest.
Made from a blend of pine and spruce, it is highly absorbent, keeping beds drier and cleaner so horses aren’t lying on damp or soiled patches. The natural oils in the wood also bring a fresh scent and antibacterial benefits, supporting a healthier stable environment. Plus, the shavings are carefully dust-extracted, helping maintain clean air and a more comfortable space for horses to relax in.
With all this in place, the right environment, enough space and a bed that supports them properly, you’re giving your horse the best chance of getting that vital REM sleep. That means they’re able to get the rest they really need, supporting not just their health, but how they feel and perform every day.
Looking to create a more comfortable, supportive bed for your horse? Find your nearest Wood & Slumber stockist.
