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Factors Affecting Sleep Among Dogs and Cats in a Veterinary Intensive Care Unit.

Emma A Devereux1, Alana V Ejezie1, Alex M Lynch1

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Hospitalized dogs and cats sleep less in intensive care units, with noise and light disrupting their rest. Environmental changes in veterinary ICUs can improve sleep for these patients.

Keywords:
ICUambient lightingenvironmental modificationnoisesleep disruption

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Area of Science:

  • Veterinary Medicine
  • Animal Behavior
  • Critical Care

Background:

  • Hospitalized animals, particularly in intensive care units (ICUs), may experience sleep disturbances.
  • Understanding sleep patterns and contributing factors is crucial for improving patient welfare and recovery.

Purpose of the Study:

  • To quantify sleep duration in hospitalized dogs and cats within an intensive care setting.
  • To identify environmental factors influencing sleep in veterinary ICU patients.

Main Methods:

  • A prospective, observational study was conducted over four weeks in a veterinary academic teaching hospital ICU.
  • Hourly recordings of patient activity (active, resting, asleep) and environmental data (noise, light, occupancy) were collected for 96 dogs and 16 cats.

Main Results:

  • The median time spent asleep was 40% for dogs and 11% for cats.
  • Dimming lights during nighttime hours increased the odds of patients being asleep by 1.7 times.
  • Increased noise levels were associated with a decreased likelihood of patients being asleep.

Conclusions:

  • Hospitalized dogs and cats exhibit sleep disturbances comparable to human ICU patients.
  • Ambient noise and light levels significantly disrupt sleep in veterinary ICU patients.
  • Modifying the ICU environment to reduce noise and light may promote better sleep and aid recovery.