Been there too. Horrible place that. I can read selkit well enough to know he's tired and just woken up when I talk to him on the phone, but that's usually because he claims it's insomnia. Until he has a sleep study done to prove this theory, I'm going to call it that it's because I'm not there and insists on staying up until he must sleep during the day because it's the only time he'll be able to as long as we're seperated.

Reading him face-to-face is another story. I'm usually good at that, but still have trouble when he stays up for multiple hours after I claim to have gone to bed and insists on sleeping the next morning and taking over 2 hours to commune with the blanket until his back stops spazzing. You may wish to recommend some excercizes to him, as I know that there are a few you like.