Experimenting with NPH?

Who's using or used NPH as a basal insulin recently? I used it years ago but it was with regular on a "sliding scale" and nothing ever worked right. There was no carb counting anyway. I'm onsidering a pump vacation next week and don't have access to Lantus now, so I might try NPH as a basal. How would one dose it? Roughly my pump daily basal split between a larger dose at bed and a smaller one after getting up? Is this likely to lead to unexpected hypos? Anything I should know?