I'm pretty sure you're covered under the ADA. If this company has an HR department, one of their jobs is to protect the company from ADA lawsuits. If you really want to keep working for this company, talk to HR and make sure they understand that as far as you're concerned, you're being fired for a disability that the company refused to accomodate. It doesn't even matter what a court would say ... a good HR department is not going to want to find out. They're going to find a way to accomodate your schedule.
That said, there are enough good bosses out there who would love to have a good programmer, even on an unusual schedule. I guarantee you'll be able to find one if you spend a little bit of time looking around.
That said, there are enough good bosses out there who would love to have a good programmer, even on an unusual schedule. I guarantee you'll be able to find one if you spend a little bit of time looking around.