Bad habit, sleeping late, working late

I have been getting into bad habits again the last few days. Ever since I returned home from a party at 5.30 am I have been sleeping in late and consequently, working really late.

Last right I was working until 1.30 in the morning. It's about 11:20 now and I am slowly doing some work but still have not risen from my bed.

Tomorrow is Monday, that's a good day for starting things fresh, so I have to force myself up early.

My partner has also got into the same habit and like me, she is currently working from home.