Why Dogs Don’t Sleep Through the Night & How to Fix It

Common Causes of Nighttime Wakefulness

Dogs often wake during the night due to unmet needs or habits formed early in life. Puppies may cry to gain attention, especially if they’ve learned that whining leads to being let out or comforted. This behavior becomes a problem if not addressed early. Older dogs may wake due to pain from joint disease, dental issues, or discomfort from cold sleeping areas. Sensory decline—like hearing or vision loss—can also disrupt sleep patterns, especially in aging dogs.

Another key factor is the dog’s natural sleep cycle. Dogs experience more sleep–wake cycles than humans, averaging about 23 cycles per night. They may wake every 21 minutes on average, with only 16 minutes of sleep at a time. This frequent shifting can make it seem like they’re not sleeping well, even if they’re not fully awake.

Puppies and Housetraining Habits

Young puppies often wake at night because they can’t hold their urine for long periods. If they’re let out every time they cry, they learn that crying gets them attention and relief. This creates a habit that can last into adulthood. To break this, experts recommend a consistent nighttime routine: ignore whining for a few minutes, then calmly take the puppy to the potty area without fuss. Once they’ve gone, return them to their crate without play or attention.

This method teaches the puppy that nighttime is for sleeping, not for interaction. Over time, they learn to wait quietly unless they truly need to go. The goal is to avoid reinforcing attention-seeking behavior while still meeting basic needs.

Exercise and Mental Stimulation Are Key

Lack of physical and mental activity during the day is a major reason dogs stay awake at night. Dogs that don’t get enough exercise or training are more likely to be restless at night. Experts recommend thorough exercise before bedtime, along with training sessions and mental challenges. Just like humans, dogs need to “recharge” after a long day of mental effort.

Avoid long daytime naps. Keep your dog engaged throughout the day with play, training, and interaction. This helps build fatigue and promotes better nighttime sleep. The more active and mentally tired your dog is during the day, the more likely they are to sleep through the night.

Older Dogs and Cognitive Changes

Older dogs often develop nighttime restlessness due to cognitive dysfunction (CCD), which can cause confusion, anxiety, and disorientation. Waking at night is one of the most common signs of CCD. Poor sleep can worsen cognitive decline, creating a cycle where lack of rest leads to more confusion, which leads to more waking.

Pain from arthritis or other musculoskeletal issues can also prevent older dogs from resting. They may struggle to get comfortable or access favorite sleeping spots. Cold sleeping areas can make this worse, as older dogs have a harder time regulating body temperature. Addressing pain and improving sleeping conditions can significantly improve nighttime rest.

When to See a Vet and How to Respond

If your dog is waking up repeatedly at night for more than two weeks, consult your vet to rule out medical issues like urinary tract infections, gastrointestinal problems, or pain. Some dogs may also benefit from melatonin supplements, which can help regulate sleep cycles in adults, but only under veterinary guidance.

When your dog whines at night, learn to distinguish between a “potty” whine—quiet and urgent—and a “play” whine—insistent and often with barking. If your dog doesn’t need to go out, ignore the behavior. Consistent responses teach them that fussing doesn’t work. Over time, they’ll learn to stay quiet and sleep through the night.