First I have to send you some (((hugs))), you are having such a tough time. I have a similar situation- my ds is now 6 months old and my dd just turned 4, my dh works long hours and even goes to Montreal for 2 days a week. My dd has nws (though not as frequent as your DS1) and she will scream out for us, want in our bed, etc., and we don't let her so she'll stay awake for what seems like hours. In our case I know it is because of the new baby, ds is sleeping in our room in a basinet so I can feed do the night feeds and dd feels so isolated at her end of the house in her room alone. She's had tons of changes since ds was born, she started JK a month later, learned about death (from a hedgehog in class
) so she's obsessed about us all dying now, and this too, keeps her awake.
I don't have anything magical to offer you, wish I did, just wanted to tell you you're not alone and also share what we do (not that it's anything great). I have a very similar routine to yours in terms of bedtimes, etc., and after ds's bed I try to make sure dd gets really tired so we'll dance, etc., anything to release energy. After we read books I let her pick 3 books to take to bed, she will sit up for sometimes an hour "reading" these books, until she passes out asleep. She rarely calls for us during this time, before this she would always call us for a glass of water, a doll or toy that was left downstairs, anything and everything! When she has her nw I go to her room, give her comfort and hugs but make sure she doesn't get up from her bed- I will reach over and hug her, but if she gets out of her bed- it's too late! One time, when ds was away, I was so exhausted I let her in my bed and it was torture- she didn't sleep, she tossed and turned, poked me, talked, talked, and talked! I'll never make that mistake again! The other thing I do (we did this one NIGHTLY but really don't need to anymore) is... give her a page of stickers. Yes, we had a huge inventory of stickers and we'd give them to her in the night. She'd get busy sticking them on the wall beside her, on the bed frame, and her arms, etc., and in the process she'd fall asleep and stay asleep. Sure, I would have 30 tiny Dora stickers to remove the next day, but we had sleep! Prop? Yes! but when it's a lo that needs their sleep as they are in school the next day, when your dh needs his sleep as he's traveling, and when you need yours for a new baby, you do what you need. The "prop" doesn't become perm., dd has somewhat gotten bored by the stickers and her sleep is for the most part, much better now.
I hope you find something that works, maybe try stickers, or something he loves. I would try not to threaten to take away toys, etc., as I would be afraid he'd have a negative sleep association and it could be worse, but that's just my opinion and I would also be hesitant about the meds unless he needs them for other things, it will only mask the issue and not really solve it in the long run (gee- I guess my stickers do the same
, but YKWIM).