Whippet

The Greyhound's smaller cousin keeps the same habit of sleeping through the day, in a body that fits a two-seater sofa. Indoors a Whippet is quiet and rarely barks, then wants a daily chance to sprint flat out somewhere safely enclosed, so find a secure field or park near you before committing. The thin coat and skin mean a jumper in winter and the odd stitched tear from brambles. Expect 12 to 15 years and little grooming beyond a weekly brush.