We have a Shih Tuz so we know how it goes. Ours can go all night from say 10PM till at least 9AM the next morning. If they don't bark then 3 to 4 hours should no be a problem.
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Wayne and Ann Moore
2015 Ford F-350 King Ranch
Firestone air bags, bed saver.
Add 40 GAL tank in bed.
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