It is a terrible thing. I hope you had everything insured.
We were broken into 3 days before Christmas 2008. They took everything under the tree, as well as heirloom jewellery and game consoles, my laptop with all our family pics for 5 years.
Not being able to sleep is normal and it will pass. Hopefully the cops do a decent job with the home. The fingerprint guy took 2 days to turn up and we could not touch anything before or tidy up the mess.
Get yourself an alarm and use it. We had one but it was not on as the wife had gone for 10 minutes to pick up the kids from school.
I bet you will know the person/s that did it. Almost certainly they are local/within the suburb, if not within a few streets.
We suspect who did ours but cant pin him with anything. A kid and his mate, 2 years older than my own.
Good luck with it and kep your chin up.