Sleeping poorly and being apart

This week, my guy is on a business trip in Montreal. The last time he was there, he had just bought his new car and drove there. This time around, he took a flight out.

We both haven't slept very well. Last night, I was tossing and turning. I eventually stopped looking at the clock at 03:45 and woke up three hours later, just raring to go to work.

My guy wrote to me tonight, saying that he was too tired to talk. He hasn't slept well for the past two nights.

I am not sure whether it is the cooler weather here or the fact that we are apart that is keeping up awake.