Dog sleep: signs your pet may need more rest

Veterinarians report that most adult dogs need about 12–14 hours of sleep and that signs such as yawning, irritability, twitching during REM, or waking groggy can indicate poor sleep.

Many dogs spend much of the day lying down, but that is not always restorative sleep. Veterinarians say dogs move through sleep cycles and enter REM sleep, which can be visible as small muscle twitches, soft whimpering, or eyes moving beneath closed lids. Experts report most adult dogs need about 12 to 14 hours of sleep per day, while puppies and senior dogs often need more. Poor or disrupted sleep can quietly affect a dog's behavior, mood, and ability to learn. Observed signs: - REM indicators include muscle twitches, soft whimpering, and eye movement under closed lids. - A well-rested dog typically wakes alert; grogginess or slow responses after long sleep can signal non-restorative rest. - Common signs of sleep disruption include yawning, irritability, clumsiness, slower reactions, low energy, and reduced interest in play or training. - Reported sleep amounts vary: about 12–14 hours for many adults, up to 18 hours for puppies and seniors, and research noting about 10.1 hours over 24 hours with 60–80% of nighttime spent sleeping. - Frequent disruptors are noise, inconsistent routines, uncomfortable sleeping areas, stress, pain, or other medical issues. - Experts say persistent changes lasting longer than a week or two, loud snoring or gasping, frequent nighttime waking, or restless pacing in older dogs can point to treatable conditions and merit veterinary attention. Summary: Sleep quality plays a key role in dogs' emotional regulation, behavior, and learning. Reported signs such as prolonged daytime sleepiness, persistent nighttime wakings, appetite changes, or notable shifts in activity can indicate underlying issues. Experts say a veterinary conversation may be appropriate if sleep changes last longer than a week or two.