Contact
By Sleep ![]()
Karolien Kop-Huisman and Geertje van Heeswijk-Jonkhart
Sleep coaches / Gentle Sleep Coaches®
E-mail: contact@by-sleep.com
Karolien: +31 (0)6 248 56 786
Geertje: +31 (0)6 14 28 03 86
Website: www.by-sleep.com
Dutch COC: 71892249
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NBKSC 
We are a member of the Nederlandse Beroepsvereniging voor Kinderslaapcoaches (NBKSC). This is the Dutch federation for sleep coaches in The Netherlands. Karolien and Geertje are initiators and co-founders and Karolien is the chairman. The aim of the NBKSC is to unite sleep coaches with a certain level of education, to maintain the quality of sleep coaching in the Netherlands.
Network
We value working with other experts so that we can help families in the best possible way. That is why we have built up a network with, among others, lactation consultants, ENT doctors and general practitioners.
We also contribute to articles about sleep for 24baby.nl and Ouders van Nu. See here our expert page from 24baby. Click here for Karoliens and Geertjes profile of Ouder van Nu.
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What a family says about us
Couldn’t have been better, both in terms of content and communication. Considering sleep coaching? Don’t hesitate, just do it!
— Anonymous (daughter, 1 year old)
You can read more testimonials here.



