Going to bed at around 4.30am because you don't have work the next morning and than getting asked 2 hours later if you can work, 2 hours of sleep before work is not fun. 
Could have said "No, I'm sleeping".
Going to bed at around 4.30am because you don't have work the next morning and than getting asked 2 hours later if you can work, 2 hours of sleep before work is not fun.
Could have said "No, I'm sleeping".