Hours
Many birds need a long quiet night.
Updated
Bird guides
Many pet birds do best with about 10 to 12 hours of quiet, dark, uninterrupted sleep, but species, age, hormones, season, and household routine matter. Poor sleep can show up as screaming, biting, fear, and hormonal behavior.
Sleep is one of the cheapest behavior fixes, and one of the easiest to overlook.

Behavior and Noise
Many pet birds do best with about 10 to 12 hours of quiet, dark, uninterrupted sleep, but species, age, hormones, season, and household routine matter. Poor sleep can show up as screaming, biting, fear, and hormonal behavior.
Use covers only when they improve safe sleep.
Use the hub for nearby questions after this answer.
Use supplies after the care plan is clear, not before.
Pick gear that makes the daily routine easier to repeat.
Many birds need a long quiet night.
Light keeps some birds alert.
Household activity interrupts rest.
Helpful only if calm and ventilated.
Sleep loss changes mood.
Sick birds may also nap more.
Give the bird a predictable bedtime, quiet room, clean air, and darkness. The goal is real rest, not just a cover thrown over a busy cage.
Television, late lights, guests, barking, kitchen noise, and people walking past the cage can keep a bird half-awake.
A cover may help some birds, but it must allow air, avoid overheating, and never be used as punishment for noise.
A tired bird may nap heavily, scream more, bite faster, act frantic, or become hormonal. Health issues can look similar, so watch the whole bird.
Protect a steady, quiet night before blaming the bird's personality.
No exact number fits every bird, but many companion birds need a long quiet night close to that range.
Regular late nights often create behavior and hormone problems.
Only if it helps the bird sleep calmly and safely.
Short naps can be normal. Heavy napping with fluffed posture, appetite change, or low energy can be a health concern.
Use these after the care plan is clear. Match size and materials to the bird you actually keep.
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