As Sara said, it is an ‘easy’ pattern because you only have to know how to knit and purl.
Have something with a simple, repetative stitch going when the kids are up, and bring the piece that needs closer watch out when they’re sleeping. As you get further along in it and you can easily see the pattern, you might be able to do it without looking at the pattern all the time because you’ll be able to tell what comes next and what doesn’t ‘look right.’