Some yorkies matt a lot easier than others too - I can imagine you brushing daily and thinking your babies hair was ok... Gizzie knots more easily than Gypsy (her hair is just great even though it's long!).. Gizzie tends to get knots on her little head and I too confess to having had to cut bits of hair from here! I now brush her head at least twice daily! Agree with doing the hair in sections - Gypsy's hair is thick and I have it thinned out now and again. Don't worry, you know now and there's no harm done!! Ana xx