How old are the kittens? Very young (just born to 5 weeks) need to be fed every 3 hours. That's alot for one person to take on.

KMR is a milk supplement that is given to kittens. It comes in powder or liquid form. I find the liquid is the best. Fill the bottle up. Room temperature is fine. Make sure when you feed them, that they are on their bellies or upright, you holding their head. The same position they'd nurse if mama was around.

Once their done (don't forget to burp), you'll need to take a cotton ball and gently rub their little winkies . This will help them pee and poo, as that is what happens when their mama would've licked them down there. (EEEW, I know, gross).

Make sure the heating pad is on low and is covered with a towel. Don't want them to get burned. Put them in a box that has a lip to it. this way they won't be able to get out till their far older.

Good luck!!