A series of CDs are being produced by Honey Bee
to help insomniacs, or rather those of us who simply want to dream of anime, sleep.
Each CD features two well-known voice actors, with one counting up to 200 sheep, and the next counting 201 to 400. Names featured on CDs already released include Ishida Kei, Houshi Souichirou, Suwabe Junichirou, Suzuki Chihiro, and Itou Kentarou. Next out will be "Can we sleep together?" featuring the voices of Fukuyama Jun and Kishio Daisuke.
Coming soon in September, we'll have Tamura Yukari (of Nanoha and Kawasumi Mai fame, not sure which voice she'd be using) and Saito Chiwa (Miyamoto-sensei). Midorikawa Hikaru and Okiayu Ryotarou come in October. Miyano Mamoru (of Suou Tamaki and Light fame) and Taniyama Kishou come in November. In December we'll have Wakamoto Norio.
EDIT: Saito Chiwa did NOT voice Itou Chika. That would be Chiba Saeko.