It was more like a 14 month death march of 100+ hour weeks, so there really was no "next week", as there was no end in sight for most of it. That's what it is like with hardware, especially late hardware that the entire company is riding on.

After the thing finally shipped, most of the team effectively took off the next 4 months, working ~4 hours or fewer hours a day, etc. But those 14 months were hell.