Fed up now. I treated the cat with those drops on the back of his neck. The blurb said he would be protected for three months, but I can still see them coming off him after two weeks.
I also cleaned the whole house, hot washed all the bedding, pillows and duvets, lit three "flea bombs" but we have counted at least 15 flea bites on poor DS1.
I have seen them, they hop off the cat onto our white duvet cover, they look like very long fleas.
Helps! Please does anyone have any ideas?