Hi there. Do you have triplets??? And you're nursing? My goodness, you must be supermom!
I'm in awe!
What's their adjusted age--assuming they were at least a bit early.
In order to drop the catnap, A times need to extend in addition to naps. When A times approach 3 hours, the catnap usually gets "squeezed" out. Is there a reason you're doing just 2 hours of A? At 7 months a lot of babies are doing close to 3, and this allows them to drop the catnap. Of course, if their adjusted age is quite a bit younger than 7 months and they can only make 2 hours, you might have to wait a bit to drop the catnap. 3.5 hours of A before bed is a long time for your babes if they can only do 2 hours for their other A times...
A lot of people feel that naps longer than 2 hours cut into night sleep. I wouldn't allow it unless you have an exceptionally tired day, illness, etc.