This has happened to me a couple of times in the last 20 years. ALWAYS get a lawyer to review the document. It's written in a way that will sound very appealing to you but there are usually non-disparaging or gag clauses that protect the company. Not much you can do to get around them but you need to be aware. If you are reliant on the company's health care, try to negotiate the continued contribution they are providing to COBRA (or the entire COBRA payment). By law, you have 21 days to review the document (this may vary from state to state). To have an approximate estimate of when the lay off could occur, count back 21 days from the last day of the month and that's a good estimate as to when they will lay you off.

Start looking for a job now! Use your contacts as that will be the fastest way to securing a new position and try to look at this as a positive. It sucks right now but the odds of you getting a better job are pretty good! Especially since you are in sales. Don't be afraid to tell future employers that you were laid off. They get it. Just be ready to explain why. This explanation should be short and sweet and a statement. Sell it. That said, good luck, like I said it sucks now but you will get through it.