I've just found them at Qian Ju Jie (钱局街), close to Cui HU. It's small shop with scissors, needles, hangers...close to big shop with socks and undergarments. Ask about Jian Kang San Bao (健康三宝 They use old character for 'bao' but I don't have it so I put simplified one). It's a package with travelling pillow, blinder and earplugs.
IF THERE IS ANYONE ELSE WHO KNOWS (FROM OWN EXPERIENCE) ANY GOOD HSK TEACHER, PLEASE LET ME KNOW. I WOULD APPRECIATE ANY ADVICE. I've just got an email from someone who also is looking for HSK teacher so it seems to me that there are more people who have a problem finding experienced teacher.
Why do you think it's a good teacher? Does she/he was your teacher? Have you ever been studying for HSK? I'm sorry that I ask so many questions but I'm looking for advice of someone who is a student. I've met many teachers here who call themselves 'experienced HSK teachers' but than it turns out that they don't know anything about this exam, it's the first time when they have book in their hands and they don't have any idea how to help student to study for HSK (any particular teaching method).