The language combination 日本語 - ノルウェー語 is not (yet) available for the book "Sleep Tight, Little Wolf".
You might be lucky, though, by changing the order of these two languages. Just go back to the Language Wizard and select ノルウェー語 as first and 日本語 as second language:
If this doesn't help, shoot me an e-mail to enquire about the availability of the title, by clicking this link: order@childrens-books-bilingual.com
If the message doesn't open automatically in your email programme, send an email to 'order@childrens-books-bilingual.com' with the subject heading:
Availability of: おおかみくんも ぐっすり おやすみなさい (日本語-ノルウェー語)