Yes, they said in their description that there is a three hour window in the evening to check in, and yes they sent a check in email that morning reiterating the same. But we (two women and three children) were on day two of our first international trip and were still getting used to the country, language, time change, and technological issues, and absolutely nothing was going as planned. Still not set up to have cell service unless connected to WIFI, I never saw the message they sent in the morning. I did message at 10pm (when stopped for dinner on the road) telling him that we'd be arriving at midnight and asking for instructions, but we didn't receive the response until we arrived. The response was that our reservation was cancelled, and even after attempts to communicate further we never got another response. It was three am before we were able to check into an alternate place an hour away, which we were able to find fortunately with the help of the neighbors in this tiny, completely quiet (asleep) hamlet. I understand it was our responsibility to know the limits presented, but to leave us hanging at midnight in the desolate Brittany countryside seems so uncaring and unforgiving. We could have really been in trouble had it not been for the help of the neighbors, for which we are extremely grateful. With this rigid window, I wouldn't book, knowing that something out of one's control could leave you completely hanging without lodging.