Staying within the city limits after work and then just heading to the penthouse had made things easier for Derek. Especially when his insomnia had gotten to the point where he was seriously worried about his safety. Particularly during what had back then been his daily commute to, and from the manor.
But now he had his insomnia under control.
Thanks to Emily, he had just spent days getting nothing but good rest. So even though Derek had not slept on Monday night. He was not feeling the effects as badly as he would have, had it been like all the other times where he had gone night, after night with no sleep. Having no idea if the situation would ever change.
Now he had Emily, and he knew that even if he was tired after not being able to sleep. His chance to slumber was only a few hours away. He just had to hang on for a little while longer, and Thursday night would arrive.