Choolie,
I exclusively BF for 4 months, and then was so sick of it I started introducing formula.
DS did sleep for longer - he was going through to about 5 am on the breast, but made it through to 6.30 - 7 am on formula.
You know all about the benefits of BF-ing so I won't repeat them all here, but for me the benefits of bottle feeding were:
More predictable feed times - ds would go for a consistent 4 hours on bottles, but timing was a bit more hit and miss when bfed.
No more leaky boobs!! My boobs never really settled down, and would still leak through 2 breast pads, a bra and a nightie every night. Not sick of waking up dripping and smelly every morning, bot to mention the endless washing.
Got my sex drive back - DH very pleased at this point!
Freedom to leave ds with someone else for the day. DS would always take EBM from a bottle, so from his point of view, leaving him wasn't a problem, but my boobs felt like they would explode if I missed too many feeds.
DH could get more involved, and became more independant when looking after ds - not always passing him to me every time he grumbled.
Found I lost weight once I stopped. Unlike what they lead you to believe, I never lost much weight while breast feeding, but lost 1/2 stone once I stopped.
Felt like I had my body back. Can't realy explain it but it was good!!
Minus points were:
Having to wash up, sterilize etc.
When out and about, having to get bottled warmed, or try to keep them cool.
Guilt on having stopped - but this passed fairly quickly with me!!
I think some babies like the comfort of bfing, and may miss that. My ds was never that bothered, as long as his appetite was met with something, but I think some babies miss it a bit. I'm sure it passes fairly quickly though.
For me, 4 months was the right time to stop. I went back to work shortly after, and I felt I'd given my baby a really good start. I don't regret stopping at all, and my ds is doing really well.
Do what is right for you and your family.
You know the facts, only you can make the decision.
Good Luck with whatever you decide!!!