How long to nap for to not interrupt sleep?

According to Andrew Huberman, naps are generally acceptable as long as they don't disrupt your ability to sleep well at night. He referenced a discussion with sleep researcher Matt Walker, emphasizing that the impact of napping on nighttime sleep varies among individuals. Some people can nap in the evening and still sleep soundly at midnight, while others might find that even a short nap after lunch affects their ability to sleep at night 1.