Awake & angry in the wee hours

Well I was woken at 3:30am this morning by ds for the second night in a row.
Dp had fallen asleep on the couch but didn't get up to the sound of him crying. I got up, was rushing to get a bottle ready and go to the toilet before I got him up while dp slowly gets off the couch, gets himself a glass of water & takes himself to bed with no offer of help. It makes me so angry. He works a lot of hours but then on his days off sleeps for half the day & never let's me sleep in. He's never interested in doing things with us on his days off unless I tell him we have to be somewhere.
Then there's the bigger problem. Money! I don't know where it all goes.
Recently his mum had to bail him out of some old credit card debt that was with a collection agency & he wasn't paying so they were going to take him to court. I didn't even know about the debt. I live on so little & he just seems to spend without caring. Even what happened didn't change that. Now I control all the money, move it to different accounts and leave him with money to spend. He spends it then gets more from his mum! If I ask about it he comes up with an excuse why he needed money from her but the reasons don't add up! Plus why doesn't he tell me he needs money for something so I can move it back for him? I'm pretty sure it's another sign the reasons for needing it are lies!
I don't know what to d anymore. The last week he took $100 cash out, then I left another $140 for him and a couple of days later he gets $150 from his mum and doesn't get home til 4:30am! I didn't say anything because the last time I asked about money from his mum he said he didn't tell me coz he hadnt seen me yet but now, almost a week after this time, not a word about it.
I have a new lease for our unit here waiting to be signed. I kee putting it off. I just don't know if I can do it any more.
Sorry this is so long but need to get it off my chest & ds is showing no sign of going back to sleep!

I left mine for the same reasons. No help, and money going. But he got 200-1000 dollars in cash or stuff for himself every week! Then berated me for not having any savings. Now I may only have a little, but at least I know where it is and that it's going on the children and me. I was stupid enough to have three children with him though. If your gut is telling you he is lying and not to sign the lease, look into it. There has to ba a certain level of accountability to your children and partner. Good luck with it.

Thanks. I hit him up about this weeks "mum donatin" and he said he was planning to get me a new phone. Mine went swimming in spilt formula in my bag. But then I sorted out a free replacement to be sent to me so he gave it back to his mum in cash. Im not sure if he really gave it back but I guess I can't know without involving his mum more and making her more guilty for giving him money. She knows she's an enabler & has helped him form bad habits over the years by giving him money. I don't want to make her feel worse.
I think I'm going to give it longer. It's a 6 month lease so if by the end I haven't seen changes in the way he spends and helps out with little man I'll be leaving. My family would love to see us around Christmas in NZ so I'm sure if I ended up making tha decision around then they would pay for flights to help me get away for a bit.