Maggie - I did residential sleep school and it was the best thing I ever did.
Although your DS may be settling now... the sleep school could still help you with other advice. And even if his day sleeps have come good - you can just focus on the night sleeps. And even if they are good... then just go there for the break!!
My hubby stayed with us, and he said it was like a holiday. We went to QEC in melbourne, and they provide all your meals, you have a private room & bathroom. And my son's night sleeps were really bad, and the nurses told me to stay in bed and just press the buzzer and they would take care of him... just so I got a rest! He also had some feeding issues, so they got a feeding specialist in to have a look at him.
You also get to mingle with other parents which is nice too.
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