How Many Hours Do Puppies Sleep? An Age-by-Age Guide

New puppy parents are often surprised: puppies sleep nearly as much as newborn babies. They also wake more often, nap unpredictably, and go through phases where sleep suddenly gets worse. Here are the age-by-age numbers — day sleep, night sleep, and overnight wake-ups — so you know what normal looks like.

Puppy Sleep Hours by Age

Individual puppies vary with breed, activity level, and environment. These are typical ranges — if your puppy is consistently well outside the range for their age, it's worth a vet check.

Why Puppies Sleep So Much

Puppies need far more sleep than adult dogs because their bodies and brains are growing fast. Deep sleep is when much of that growth and development happens, and it's also when puppies process everything they learned while awake. Adult dogs typically sleep around 12–14 hours a day; puppies need more.

A puppy who is consistently short on sleep tends to be more mouthy, more reactive, and harder to train — which is why protecting naps matters as much as the nighttime routine.

Day Sleep vs. Night Sleep

Young puppies sleep in many short blocks spread across the day and night, with no strong preference for darkness — much like human newborns. That's normal.

A common mistake is keeping a puppy awake all day to "save up" sleep for the night. It almost always backfires. An overtired puppy is wired, not sleepy, and you get the pre-bed zoomies many owners know too well. (See the overtired paradox.)

Between about 4 and 6 months, most puppies shift toward one long night of sleep plus a few daytime naps. You can support that shift by letting daytime naps happen in normal light and keeping the overnight sleep space consistently dark and quiet. For nap counts by age, see the daytime nap schedule.

Why Your Puppy Sleeps More (or Less) Than the Chart

Illness or pain (sleeping more than normal)

Puppies who are fighting an infection, recovering from a vaccination, or in pain may sleep more than usual. If extra sleep comes with loss of appetite, unusual stool, vomiting, or lethargy when awake, call your vet. Don't assume extra sleep is always "just a growth spurt."

Overtired (fighting sleep, then crashing)

An overtired puppy doesn't fall asleep earlier. They fight sleep — biting, barking, racing around — and then crash suddenly. Total sleep may look normal, but the timing is off, with late crashes and early wake-ups. The fix is a calm wind-down starting about 90 minutes before bedtime.

Growth spurts (a temporary increase)

Puppies grow in spurts, especially large and giant breeds. During a spurt, a puppy may sleep noticeably more for a few days. As long as they're alert, eating, and playing normally when awake, that's nothing to worry about.

Sleep regressions at 4 and 6 months

Puppies who were sleeping well often hit a rough patch around 4 months (teething) and again around 6 months (adolescence). See the 4 and 6 month sleep regression audit.

How to Track Your Puppy's Sleep

You don't need an app. A simple paper log — time down, time up, overnight wake-ups — for 3–5 days gives you a reliable baseline. Note nap length and whether your puppy settled easily or fought it. Within a few days you'll spot patterns: the cranky overtired windows (often mid-afternoon and early evening), reliable nap lengths, and the real overnight stretch.

When to call your vet:

• Your puppy is sleeping much less than the range for their age, day after day
• A sudden, large change from their normal pattern
• Whimpering or crying during sleep or when lying down that suggests pain
• Lethargy — limp or unresponsive when awake, not just sleepy

First Night Home

The first night away from the litter is usually the hardest. Your puppy has no positive association with the crate yet, doesn't know your home's sounds, and is taking in a huge amount of new information. Expect 2–3 wake-ups and some crying — that's normal adjustment.

The goal of night one isn't perfect sleep; it's making the crate feel safe. Helpful basics: a heartbeat toy, a crate cover, white noise, and a recently worn piece of your clothing. A calm 90-minute wind-down before crate time helps your puppy settle faster. The printable first-year sleep guide has the full bedtime countdown and our product picks.

Frequently Asked Questions

How many hours do puppies sleep a day?

Young puppies (under 12 weeks) sleep about 16–20 hours a day. By 4–6 months that drops to around 14–16 hours, and by 6 months most puppies sleep 12–14 hours a day.

Is it normal for my 8-week-old puppy to sleep all day?

Yes. An 8-week-old sleeping 16–18 hours a day is completely normal. Expect frequent naps broken up by short bursts of play, feeding, and potty trips.

Why does my puppy sleep so much more than my adult dog?

Puppies' brains and bodies are developing rapidly, and much of that happens during deep sleep. Adult dogs typically sleep around 12–14 hours a day; puppies need more to support growth and learning.

When do puppies start sleeping through the night?

Most puppies can sleep 6–7 hours overnight by 4–6 months. At 8–12 weeks, expect 1–2 wake-ups a night for potty trips. By 6 months, most puppies can sleep 7–8 hours. A consistent bedtime routine and crate setup help — see how to get your puppy to sleep through the night.

My puppy suddenly sleeps a lot more — should I be worried?

Short increases during growth spurts are normal. Call your vet if extra sleep comes with fever, loss of appetite, vomiting, labored breathing, or lethargy when awake (limp or unresponsive, not just sleepy), or if it lasts more than a few days.

How do I help my puppy sleep longer at night?

Three things help most: a 90-minute low-key wind-down before bed with no vigorous play in the last hour; a consistent crate setup with white noise and a crate cover; and timing the last meal and final potty trip so the bladder is as empty as possible at lights-out.

References

• American Kennel Club. AKC Health Center.