If

Jonah had a suspicion that Eden only slept too deeply to be woken because she was exhausted from trying too hard to remain cheerful and friendly while stressed about whatever what going on with her family today. 

He knew her mother had been pestering her lately about not coming down for Thanksgiving. She only had one day off so it wasn't exactly possible without paying an exorbitant amount of money to fly. 

She told him even if money wasn't an issue that she wouldn't want to go anyway and had no intentions of going down there for Christmas either. The lab was open for half a day on Christmas Eve and she had all of Christmas Day off but it was in the middle of the week so she had the same problem.