Whippet

The Greyhound's quiet in a smaller frame. Whippets tend to bark only when something genuinely warrants it, or when a household has taught them that barking pays. What you hear instead is the thump of a dog sprinting through rooms in a sudden burst, then nothing for hours. They feel the cold and burrow into bedding, so the main nightly noise is likely to be a coat being rearranged.