Why Does My Puppy Bite More at Night?

Evening biting is usually a combination of an entire day's stimulation catching up with your puppy, plus tiredness, hitting at the exact time your household is trying to wind down. It's common enough to have a nickname — the "witching hour" — and a predictable fix: a shorter, calmer evening, not a more tiring one.

The short answer

If your puppy bites harder and gets harder to settle in the evening, it's rarely a new problem — it's the same causes as daytime biting (teething, play, overstimulation, tiredness), stacked up by the end of the day with less of your own patience left to manage it. A consistent wind-down routine, not more play, is what actually shortens it.

Why puppies often bite more in the evening

• Accumulated stimulation — a full day of sights, sounds and activity adds up, and puppies don't always self-regulate that buildup the way an adult dog does.
• Tiredness — paradoxically, an overtired puppy often looks *more* wound up, not sleepier, because impulse control is the first thing to go when they're exhausted.
• Leftover play energy — if the evening includes the day's most intense play session, that arousal doesn't switch off the moment play stops.
• A disrupted routine — an inconsistent bedtime or last-minute changes to the evening (visitors, a late walk, a missed nap) can all show up as extra bite-y behaviour.
• Teething, where relevant — sore gums can feel worse by evening, with fewer distractions to take a puppy's mind off it.

Signs your puppy may be overtired

• Biting that's harder or more frantic than their usual play bite
• Zoomies that don't resolve into calm on their own
• Grabbing at clothes, hair or ankles more than usual
• Seeming to want to keep playing while also seeming unable to settle
• General crankiness — barking, whining, or overreacting to small things

For tired biting vs excited play, see puppy biting when tired. For the wider signs of an overtired puppy, see is my puppy overtired?

What to do when the evening biting starts

Example evening routine

A rough template — adjust the exact times to your puppy's actual bedtime, but keep the order: active play ends well before lights out, not right up until it.

Should I play with my puppy to tire them out?

Usually not right before bed. Intense play raises arousal, and arousal doesn't reliably drop just because the game ends — it's common for a puppy to come out of a big evening play session *more* wound up and bite-y, not sleepier. Physical exercise earlier in the day is genuinely useful; right before bed, calmer activities work better than more stimulating ones.

What if my puppy keeps biting despite being rested?

If a consistent wind-down routine over a week or two hasn't changed much, it's worth checking whether excitement — rather than tiredness — is actually the bigger driver. See puppy biting when excited for the arousal-specific approach, or go back to the main puppy biting guide for the full picture.