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Why is my puppy sleeping so much?

Puppies sleep for a large part of the day, and it's genuinely normal rather than a cause for concern in most cases. Sleep is when a huge amount of physical growth and brain development actually happens, so a puppy who eats, plays and toilets normally between naps is very unlikely to be unwell.

Usually not urgent

This is common and often manageable at home — but see a vet if it persists, gets worse, or comes with other changes.

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Why puppies need so much sleep

A young, growing body does an enormous amount of its physical development during rest rather than while active, including the release of growth hormone and the kind of brain development that shapes how a puppy learns and behaves as they mature.

Growth itself is physically demanding, and short, intense bursts of play followed by a proper deep sleep is simply how a growing puppy's energy naturally cycles, especially in the youngest weeks.

What normal looks like

A healthy pattern usually involves short periods of high-energy play and exploration followed by a solid nap, repeated many times across the day, rather than one long stretch of activity followed by one long sleep the way an adult dog might manage.

How much sleep is typical does shift with age too, with very young puppies generally needing considerably more rest than an older puppy approaching adolescence, so the pattern you see at eight weeks won't necessarily match what you see at five months.

Growth spurts and teething

Puppies go through periods of particularly rapid physical growth, and it's common for sleep needs to increase noticeably during these spurts, alongside a temporary increase in appetite. This isn't something to worry about on its own, and it tends to settle once the growth phase passes.

Teething is another stretch where some puppies seem to want to sleep more than usual, alongside chewing more and occasionally seeming a little off their food. A comfortable place to rest and appropriate chews tend to help more here than anything else.

How the pattern changes as puppies mature

As puppies move from the very young stage into adolescence, the total amount of sleep needed each day generally decreases, and the pattern shifts toward something closer to an adult dog's rhythm, with longer stretches of activity between rests.

This transition happens gradually rather than at a fixed age for every puppy, so it's more useful to watch your own puppy's pattern settle over time than to expect a sudden change on a particular date. Larger breeds in particular can take noticeably longer to reach that more settled adult rhythm than smaller ones.

When it's worth a closer look

A puppy who is hard to wake, unusually floppy or unresponsive even once roused, or who seems weak or wobbly on their feet deserves urgent attention rather than being left to sleep it off, since this can be a sign of low blood sugar, which is a genuine and serious risk in very young or small breed puppies.

Other signs worth taking seriously alongside excessive sleepiness include vomiting, diarrhoea, not eating or drinking normally, or pale gums. None of these on their own confirm what's wrong, but together with unusual sleepiness they're a clear signal to get your puppy seen.

Giving a puppy a good place to sleep

A quiet, comfortable spot away from constant household traffic and noise supports the kind of proper rest a growing puppy actually needs, rather than fitful naps interrupted every few minutes by household activity going on around them.

An overtired or overstimulated puppy can become nippy or overexcited rather than calming down on their own, so building in scheduled quiet time, alongside a bed they can retreat to, genuinely helps more than it might seem, and it's a habit worth establishing early rather than only reaching for once problems appear.

What can help

Things we stock that owners commonly use alongside a vet’s advice — not a substitute for it.

Dog Calming Ear Muffs For Fireworks & Thunder

Dog Calming Ear Muffs For Fireworks & Thunder

£11.99

Ice-Silk Cooling Dog Bed with Bolster Edge

Ice-Silk Cooling Dog Bed with Bolster Edge

From£12.99

L-Shaped Bolster Sofa Dog Bed

L-Shaped Bolster Sofa Dog Bed

From£44.99

Plush Checkered Dog Car Back Seat Bed

Plush Checkered Dog Car Back Seat Bed

From£11.99

Common questions

How many hours a day should a puppy sleep?
Very young puppies commonly sleep for a large part of the day, gradually reducing as they mature into adolescence. Short bursts of intense play in between long naps is completely normal at this age.
Is it normal for a puppy to be hard to wake from a nap?
A puppy in a deep sleep can take a moment to properly rouse, but one who is genuinely difficult to wake, floppy, or unresponsive needs urgent veterinary attention rather than being left to sleep it off.
Can low blood sugar cause excessive sleepiness in puppies?
Yes, this is a genuine and potentially serious risk in very young or small and toy breed puppies. A puppy who seems unusually weak, wobbly or hard to rouse should be seen by a vet promptly.
Should I wake my puppy up to eat?
Generally a healthy puppy wakes on their own when hungry. If a puppy is regularly sleeping through meals and seems otherwise off, that pattern is worth mentioning to your vet rather than assuming they'll eat when ready.
Does teething affect how much a puppy sleeps?
It can. Some puppies sleep a little more than usual while teething, alongside chewing more and occasionally seeming slightly off their food, and this usually settles on its own as teething passes.
Do rescue or older puppies sleep differently to very young ones?
An older puppy generally needs less total sleep than one only a few weeks old, though a rescue puppy settling into a new home may sleep more than expected for a while simply from the stress and change of routine, which is normal and usually eases as they settle in over the following weeks.

Related

Sources

Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.

Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.